[HST REPORTS]

[HST REPORTS] HST Daily Report

Mon, 25 May 2026 18:30:00 GMT

[HST REPORTS] HST Daily Report

Sun, 24 May 2026 18:30:00 GMT

<table align="center" border="0" cellpadding="0" cellspacing="0" width=100%> <tbody> <tr> <td align="left"><a href="https://innerspace.stsci.edu/display/HSTMO/Previous+HST+Daily+Status+Reports">Earlier reports</a></td> <td align="right"><a href="https://landweb.modaps.eosdis.nasa.gov/browse/calendar.html" target="new">Convert Day of Year</a></td> </tr> </tbody> </table> <h2 align="center">The Hubble Space Telescope</h2> <h3 align="center"><em>Unlocking the Secrets of the Universe</em></h3> <p align="center">Daily Report #10905</p> <p align="center">Period Covered: <br>08:00 PM May 22, 2026 - 07:59 PM May 23, 2026 <br>(DOY 143/0000z - 143/2359z)</p> <table border="1" cellpadding="5" cellspacing="0"> <tbody> <tr> <th>Program</th> <th nowrap>Principal Investigator</th> <th nowrap>Program Title</th> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Science Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17716.pro">17716</a></td> <td>Michael McDonald, Massachusetts Institute of Technology</td> <td>Probing Multiphase Cooling Via OVI Emission in the Cores of the Most Extreme Cooling Flows</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17804.pro">17804</a></td> <td>R. O. Loyd, Eureka Scientific Inc.</td> <td>STELa: Survey of Transiting Exoplanets in Lyman-alpha</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17915.pro">17915</a></td> <td>Adam Riess, The Johns Hopkins University</td> <td>Completing the HST+Gaia Reference Sample to Optimize the Measurement of the Hubble Constant</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18056.pro">18056</a></td> <td>David Rupke, Rhodes College</td> <td>Growing in the Wind: OVI Spectroscopy of Cool Clouds mixing with a Hot CGM</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18107.pro">18107</a></td> <td>Sean Johnson, University of Michigan</td> <td>Baryonic Escape, Abundances, and Thermodynamics in Cosmic Ecosystems (BEATriCE)</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18120.pro">18120</a></td> <td>Natsuko Yamaguchi, California Institute of Technology</td> <td>A COS Legacy Survey of Gaia DR3 WD+MS binaries</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18122.pro">18122</a></td> <td>Laura Duffy, The Pennsylvania State University</td> <td>When Changing-Look Quasars Wake-Up, Do They Look the Same as Before They Went to Sleep?</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18139.pro">18139</a></td> <td>Lillian Jiang, University of California - Santa Barbara</td> <td>Tracing Accretion in the Planetary Regime: A Comprehensive UV/Optical Survey of the Late Stages of Planet Formation</td> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Calibration Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17945.pro">17945</a></td> <td>Aidan Pidgeon, Space Telescope Science Institute</td> <td>WFC3 UVIS Bowtie Monitor</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17947.pro">17947</a></td> <td>Aidan Pidgeon, Space Telescope Science Institute</td> <td>WFC3 UVIS CCD Daily Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17972.pro">17972</a></td> <td>Benjamin Kuhn, Space Telescope Science Institute</td> <td>WFC3 CSM Monitor with Earth Flats</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18155.pro">18155</a></td> <td>Matthew Dallas, Space Telescope Science Institute</td> <td>STIS CCD Dark Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18158.pro">18158</a></td> <td>Joshua Lothringer, Space Telescope Science Institute</td> <td>STIS CCD Bias and Read Noise Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18197.pro">18197</a></td> <td>Christian Johnson, Space Telescope Science Institute</td> <td>Cycle 33 FUV Detector Dark Monitor</td> </tr> </tbody> </table>

[HST REPORTS] HST Daily Report

Sat, 23 May 2026 18:30:00 GMT

<table align="center" border="0" cellpadding="0" cellspacing="0" width=100%> <tbody> <tr> <td align="left"><a href="https://innerspace.stsci.edu/display/HSTMO/Previous+HST+Daily+Status+Reports">Earlier reports</a></td> <td align="right"><a href="https://landweb.modaps.eosdis.nasa.gov/browse/calendar.html" target="new">Convert Day of Year</a></td> </tr> </tbody> </table> <h2 align="center">The Hubble Space Telescope</h2> <h3 align="center"><em>Unlocking the Secrets of the Universe</em></h3> <p align="center">Daily Report #10904</p> <p align="center">Period Covered: <br>08:00 PM May 21, 2026 - 07:59 PM May 22, 2026 <br>(DOY 142/0000z - 142/2359z)</p> <table border="1" cellpadding="5" cellspacing="0"> <tbody> <tr> <th>Program</th> <th nowrap>Principal Investigator</th> <th nowrap>Program Title</th> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Science Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18050.pro">18050</a></td> <td>Hannah Bish, Space Telescope Science Institute</td> <td>Reaping the Whirlwind: Accretion & Outflow in the Inner Milky Way</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18056.pro">18056</a></td> <td>David Rupke, Rhodes College</td> <td>Growing in the Wind: OVI Spectroscopy of Cool Clouds mixing with a Hot CGM</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18065.pro">18065</a></td> <td>Graham Harper, University of Colorado at Boulder</td> <td>Alpha-1 Hercules (M5 Ib-II): Wind Acceleration from an Oxygen-rich AGB star in a Coeval System</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18068.pro">18068</a></td> <td>Nitya Kallivayalil, The University of Virginia</td> <td>Dynamically Mapping the Satellite Galaxies in the Outer Halo of the Milky Way</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18070.pro">18070</a></td> <td>R. Tully, University of Hawaii</td> <td>SNAP Observations of All Unobserved Galaxies within 10 Mpc</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18139.pro">18139</a></td> <td>Lillian Jiang, University of California - Santa Barbara</td> <td>Tracing Accretion in the Planetary Regime: A Comprehensive UV/Optical Survey of the Late Stages of Planet Formation</td> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Calibration Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17947.pro">17947</a></td> <td>Aidan Pidgeon, Space Telescope Science Institute</td> <td>WFC3 UVIS CCD Daily Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17976.pro">17976</a></td> <td>Jenna Ryon, Space Telescope Science Institute</td> <td>ACS Internal CTE Monitor</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17978.pro">17978</a></td> <td>Alyssa Guzman, Space Telescope Science Institute</td> <td>CCD Daily Monitor (Part 2)</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18155.pro">18155</a></td> <td>Matthew Dallas, Space Telescope Science Institute</td> <td>STIS CCD Dark Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18158.pro">18158</a></td> <td>Joshua Lothringer, Space Telescope Science Institute</td> <td>STIS CCD Bias and Read Noise Monitor Part 2</td> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Other Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/15962.pro">15962</a></td> <td>Merle Reinhart, Space Telescope Science Institute</td> <td>Routine EEPROM dumps for ACS, COS, STIS, and WFC3</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18228.pro">18228</a></td> <td>Merle Reinhart, Space Telescope Science Institute</td> <td>ACS/COS/STIS/WFC3 NED History Log Collection</td> </tr> </tbody> </table>

[HST REPORTS] HST Daily Report

Fri, 22 May 2026 18:30:00 GMT

<table align="center" border="0" cellpadding="0" cellspacing="0" width=100%> <tbody> <tr> <td align="left"><a href="https://innerspace.stsci.edu/display/HSTMO/Previous+HST+Daily+Status+Reports">Earlier reports</a></td> <td align="right"><a href="https://landweb.modaps.eosdis.nasa.gov/browse/calendar.html" target="new">Convert Day of Year</a></td> </tr> </tbody> </table> <h2 align="center">The Hubble Space Telescope</h2> <h3 align="center"><em>Unlocking the Secrets of the Universe</em></h3> <p align="center">Daily Report #10903</p> <p align="center">Period Covered: <br>08:00 PM May 20, 2026 - 07:59 PM May 21, 2026 <br>(DOY 141/0000z - 141/2359z)</p> <table border="1" cellpadding="5" cellspacing="0"> <tbody> <tr> <th>Program</th> <th nowrap>Principal Investigator</th> <th nowrap>Program Title</th> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Science Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17520.pro">17520</a></td> <td>Louise Breuval, Space Telescope Science Institute - ESA</td> <td>A 1% cross-calibration of Cepheids, TRGB, and JAGB in five nearby galaxies with HST</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17716.pro">17716</a></td> <td>Michael McDonald, Massachusetts Institute of Technology</td> <td>Probing Multiphase Cooling Via OVI Emission in the Cores of the Most Extreme Cooling Flows</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17804.pro">17804</a></td> <td>R. O. Loyd, Eureka Scientific Inc.</td> <td>STELa: Survey of Transiting Exoplanets in Lyman-alpha</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17930.pro">17930</a></td> <td>Moire Prescott, New Mexico State University</td> <td>A Complete Sample of Ionization Echoes Around Fading AGN</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18001.pro">18001</a></td> <td>Sarah Peacock, University of Maryland Baltimore County</td> <td>Completing Panchromatic Spectra for High Priority HWO Target Stars</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18010.pro">18010</a></td> <td>Benjamin Proudfoot, University of Central Florida Board of Trustees</td> <td>A Search For The Moons of Mid-Sized TNOs</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18011.pro">18011</a></td> <td>Na'ama Hallakoun, Weizmann Institute of Science</td> <td>White dwarfs with inconsistent ages in young open clusters</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18036.pro">18036</a></td> <td>Monique Aller, Georgia Southern University Res. & Svc. Foundation, Inc</td> <td>Multiwavelength Extinction Curves in Distant Galaxies</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18056.pro">18056</a></td> <td>David Rupke, Rhodes College</td> <td>Growing in the Wind: OVI Spectroscopy of Cool Clouds mixing with a Hot CGM</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18061.pro">18061</a></td> <td>Michael Jones, California Institute of Technology</td> <td>Hubble Census of Nearby Satellites</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18068.pro">18068</a></td> <td>Nitya Kallivayalil, The University of Virginia</td> <td>Dynamically Mapping the Satellite Galaxies in the Outer Halo of the Milky Way</td> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Calibration Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17947.pro">17947</a></td> <td>Aidan Pidgeon, Space Telescope Science Institute</td> <td>WFC3 UVIS CCD Daily Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17976.pro">17976</a></td> <td>Jenna Ryon, Space Telescope Science Institute</td> <td>ACS Internal CTE Monitor</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18155.pro">18155</a></td> <td>Matthew Dallas, Space Telescope Science Institute</td> <td>STIS CCD Dark Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18158.pro">18158</a></td> <td>Joshua Lothringer, Space Telescope Science Institute</td> <td>STIS CCD Bias and Read Noise Monitor Part 2</td> </tr> </tbody> </table>

[HST REPORTS] HST Daily Report

Thu, 21 May 2026 18:30:00 GMT

<table align="center" border="0" cellpadding="0" cellspacing="0" width=100%> <tbody> <tr> <td align="left"><a href="https://innerspace.stsci.edu/display/HSTMO/Previous+HST+Daily+Status+Reports">Earlier reports</a></td> <td align="right"><a href="https://landweb.modaps.eosdis.nasa.gov/browse/calendar.html" target="new">Convert Day of Year</a></td> </tr> </tbody> </table> <h2 align="center">The Hubble Space Telescope</h2> <h3 align="center"><em>Unlocking the Secrets of the Universe</em></h3> <p align="center">Daily Report #10902</p> <p align="center">Period Covered: <br>08:00 PM May 19, 2026 - 07:59 PM May 20, 2026 <br>(DOY 140/0000z - 140/2359z)</p> <table border="1" cellpadding="5" cellspacing="0"> <tbody> <tr> <th>Program</th> <th nowrap>Principal Investigator</th> <th nowrap>Program Title</th> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Science Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17833.pro">17833</a></td> <td>Julianne Dalcanton, Flatiron Institute</td> <td>Bringing HST to the VLA: The Interaction of Stars and Gas in the Local Group</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17930.pro">17930</a></td> <td>Moire Prescott, New Mexico State University</td> <td>A Complete Sample of Ionization Echoes Around Fading AGN</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18011.pro">18011</a></td> <td>Na'ama Hallakoun, Weizmann Institute of Science</td> <td>White dwarfs with inconsistent ages in young open clusters</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18095.pro">18095</a></td> <td>Sean Linden, Rochester Institute of Technology</td> <td>The Hidden Engines That Could: Tracing Clump Formation and Evolution in the Hearts of Infrared-Luminous AGN Hosts</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18097.pro">18097</a></td> <td>Tian Li, Portsmouth University/ICG</td> <td>Breaking the mass sheet degeneracy in strong lensing time delay cosmology with a new sample of double source plane lenses.</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18116.pro">18116</a></td> <td>Shu Wang, University of Southampton</td> <td>Improving BH Scaling Relations in High-Mass AGNs: Insights from HST Imaging and Dynamical Modeling</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18132.pro">18132</a></td> <td>Yuhan Yao, University of California - Berkeley</td> <td>The first UV spectra of optically overluminous and featureless tidal disruption events</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18243.pro">18243</a></td> <td>Matthew Bayliss, University of Cincinnati Main Campus</td> <td>Spatially Resolving A HMXB Stellar Population at Cosmic Noon With Strong Lensing</td> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Calibration Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17945.pro">17945</a></td> <td>Aidan Pidgeon, Space Telescope Science Institute</td> <td>WFC3 UVIS Bowtie Monitor</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17947.pro">17947</a></td> <td>Aidan Pidgeon, Space Telescope Science Institute</td> <td>WFC3 UVIS CCD Daily Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17956.pro">17956</a></td> <td>Joel Green, Space Telescope Science Institute</td> <td>WFC3 IR Dark Monitor</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17969.pro">17969</a></td> <td>Benjamin Kuhn, Space Telescope Science Institute</td> <td>WFC3 UVIS Pixel-to-Pixel QE Variations via Internal Flats</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17972.pro">17972</a></td> <td>Benjamin Kuhn, Space Telescope Science Institute</td> <td>WFC3 CSM Monitor with Earth Flats</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17978.pro">17978</a></td> <td>Alyssa Guzman, Space Telescope Science Institute</td> <td>CCD Daily Monitor (Part 2)</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18155.pro">18155</a></td> <td>Matthew Dallas, Space Telescope Science Institute</td> <td>STIS CCD Dark Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18158.pro">18158</a></td> <td>Joshua Lothringer, Space Telescope Science Institute</td> <td>STIS CCD Bias and Read Noise Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18204.pro">18204</a></td> <td>Jacqueline Hernandez, Space Telescope Science Institute</td> <td>Cycle 33 COS FUV Change in Spectroscopic Sensitivity Trends</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18221.pro">18221</a></td> <td>Daniel Stapleton, Space Telescope Science Institute</td> <td>Supplemental NUV Sensitivity Monitoring Through Solar Maximum</td> </tr> </tbody> </table>

[HST REPORTS] HST Daily Report

Wed, 20 May 2026 18:30:00 GMT

<table align="center" border="0" cellpadding="0" cellspacing="0" width=100%> <tbody> <tr> <td align="left"><a href="https://innerspace.stsci.edu/display/HSTMO/Previous+HST+Daily+Status+Reports">Earlier reports</a></td> <td align="right"><a href="https://landweb.modaps.eosdis.nasa.gov/browse/calendar.html" target="new">Convert Day of Year</a></td> </tr> </tbody> </table> <h2 align="center">The Hubble Space Telescope</h2> <h3 align="center"><em>Unlocking the Secrets of the Universe</em></h3> <p align="center">Daily Report #10901</p> <p align="center">Period Covered: <br>08:00 PM May 18, 2026 - 07:59 PM May 19, 2026 <br>(DOY 139/0000z - 139/2359z)</p> <table border="1" cellpadding="5" cellspacing="0"> <tbody> <tr> <th>Program</th> <th nowrap>Principal Investigator</th> <th nowrap>Program Title</th> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Science Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17833.pro">17833</a></td> <td>Julianne Dalcanton, Flatiron Institute</td> <td>Bringing HST to the VLA: The Interaction of Stars and Gas in the Local Group</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18008.pro">18008</a></td> <td>Charles Kilpatrick, Northwestern University</td> <td>Using HST to Find Supernova Progenitor Stars in JWST, HST, and Euclid Imaging</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18049.pro">18049</a></td> <td>Erica Hammerstein, University of California - Berkeley</td> <td>Multi-Epoch UV Spectroscopy of Young Tidal Disruption Events</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18056.pro">18056</a></td> <td>David Rupke, Rhodes College</td> <td>Growing in the Wind: OVI Spectroscopy of Cool Clouds mixing with a Hot CGM</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18060.pro">18060</a></td> <td>Antoine Bedard, University of Warwick</td> <td>Opening the crucial ultraviolet window on carbon dredge-up in white dwarfs</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18095.pro">18095</a></td> <td>Sean Linden, Rochester Institute of Technology</td> <td>The Hidden Engines That Could: Tracing Clump Formation and Evolution in the Hearts of Infrared-Luminous AGN Hosts</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18097.pro">18097</a></td> <td>Tian Li, Portsmouth University/ICG</td> <td>Breaking the mass sheet degeneracy in strong lensing time delay cosmology with a new sample of double source plane lenses.</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18098.pro">18098</a></td> <td>Amy Bonsor, University of Cambridge</td> <td>Is Sulfur stored in the refractory or volatile component of planetary building blocks?</td> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Calibration Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17947.pro">17947</a></td> <td>Aidan Pidgeon, Space Telescope Science Institute</td> <td>WFC3 UVIS CCD Daily Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17949.pro">17949</a></td> <td>Isabel Rivera, Space Telescope Science Institute</td> <td>WFC3 UVIS CCD Unflashed (CTE) Monitor</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17972.pro">17972</a></td> <td>Benjamin Kuhn, Space Telescope Science Institute</td> <td>WFC3 CSM Monitor with Earth Flats</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18155.pro">18155</a></td> <td>Matthew Dallas, Space Telescope Science Institute</td> <td>STIS CCD Dark Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18158.pro">18158</a></td> <td>Joshua Lothringer, Space Telescope Science Institute</td> <td>STIS CCD Bias and Read Noise Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18202.pro">18202</a></td> <td>Leonardo Dos Santos, Space Telescope Science Institute</td> <td>Cycle 33 COS FUV Split-Wavecal Calibration Program</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18204.pro">18204</a></td> <td>Jacqueline Hernandez, Space Telescope Science Institute</td> <td>Cycle 33 COS FUV Change in Spectroscopic Sensitivity Trends</td> </tr> </tbody> </table>

[JWST Observer] Latest News: Rocky Worlds DDT Data Challenge Is Now Open

Wed, 20 May 2026 15:00:00 GMT

<center class="wrapper" style="width: 100%; background: #f2f2f2; text-align: left;">  <div style="display:none;font-size:1px;line-height:1px;max-height:0px;max-width:0px;opacity:0;overflow:hidden;mso-hide:all;font-family: sans-serif;"> </div>   <div style="max-width: 600px; margin: auto;" class="email-container">   <table role="presentation" border="0" align="center" width="100%" style="max-width: 600px;"> <tbody> <tr> <td style="padding: 20px 0; text-align: center"> <a href="https://www.stsci.edu" title="This link takes you to the STScI website."> <img src="http://www.stsci.edu/files/live/sites/www/files/home/jwst/news-events/news/_images/stsci-logo.png" width="194" height="35" alt="STScI logo" border="0" style="height: auto; font-family: sans-serif; font-size: 15px; line-height: 20px;"> </a> </td> </tr> </tbody> </table>   <table role="presentation" border="0" align="center" width="100%" style="max-width: 600px;"> <tbody> <tr> <td style="text-align: center;font-family: sans-serif; font-size: 32px; line-height: 40px; background: #012228; color: #ffffff; padding: 40px 10px 40px;" class="stack-column-center"> <p style="margin: 0;">JWST Observer Latest News</p> </td> </tr>  <tr> <td bgcolor="#ffffff"> <img src="http://www.stsci.edu/files/live/sites/www/files/home/jwst/news-events/news/_images/newsletter-banner.jpg" width="600" height="" alt="newsletter masthead image" border="0" align="center" style="width: 100%; max-width: 600px; height: auto; background: #dddddd; font-family: sans-serif; font-size: 15px; line-height: 20px;" class="g-img"> </td> </tr>  <p></p> <tr> <td bgcolor="3D#ffffff"> <table role="presentation" border="0" width="100%" style="background-color:#ffffff;"> <tbody> <tr> <td style="padding: 40px; font-family: sans-serif; font-size: 15px; line-height: 20px; color: #555555;"> <h2 style="margin: 0 0 10px 0; font-family: sans-serif; font-size: 18px; line-height: 21px; color: #333333; font-weight: bold; text-align:center;"><a href="http://www.stsci.edu/contents/news/jwst/2026/rocky-worlds-ddt-data-challenge-is-now-open.html" title="This link takes you to the JWST Observer website.">Rocky Worlds DDT Data Challenge Is Now Open</a></h2> <p style="margin: 0; text-align:center;">The challenge is designed to engage and help prepare the community to interpret rocky exoplanet atmosphere observations with JWST.</p> </td> </tr> <tr> <td style="padding: 0 40px; font-family: sans-serif; font-size: 15px; line-height: 20px; color: #555555;">  <table role="presentation" border="0" align="center" style="margin: auto;"> <tbody> <tr> <td style="border-radius: 12px; background: #003399; text-align: center;" class="button-td"> <a href="https://www.stsci.edu/jwst/news-events/news" title="This link takes you to the JWST Observer website." style="background: #F8AF29; border: 15px solid #F8AF29; font-family: sans-serif; font-size: 13px; line-height: 1.1; text-align: center; text-decoration: none; display: block; border-radius: 3px; font-weight: bold;" class="button-a"> <span style="color:#000000;" class="button-link">View All JWST Observer News</span> </a> </td> </tr> </tbody> </table> </td> </tr>  <tr> <td aria-hidden="true" height="40" style="font-size: 0; line-height: 0;">   </td> </tr>  </tbody> </table> </td> </tr> </tbody> </table> </div> </center>

[HST REPORTS] HST Daily Report

Tue, 19 May 2026 18:30:00 GMT

<table align="center" border="0" cellpadding="0" cellspacing="0" width=100%> <tbody> <tr> <td align="left"><a href="https://innerspace.stsci.edu/display/HSTMO/Previous+HST+Daily+Status+Reports">Earlier reports</a></td> <td align="right"><a href="https://landweb.modaps.eosdis.nasa.gov/browse/calendar.html" target="new">Convert Day of Year</a></td> </tr> </tbody> </table> <h2 align="center">The Hubble Space Telescope</h2> <h3 align="center"><em>Unlocking the Secrets of the Universe</em></h3> <p align="center">Daily Report #10900</p> <p align="center">Period Covered: <br>08:00 PM May 17, 2026 - 07:59 PM May 18, 2026 <br>(DOY 138/0000z - 138/2359z)</p> <table border="1" cellpadding="5" cellspacing="0"> <tbody> <tr> <th>Program</th> <th nowrap>Principal Investigator</th> <th nowrap>Program Title</th> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Science Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17804.pro">17804</a></td> <td>R. O. Loyd, Eureka Scientific Inc.</td> <td>STELa: Survey of Transiting Exoplanets in Lyman-alpha</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18001.pro">18001</a></td> <td>Sarah Peacock, University of Maryland Baltimore County</td> <td>Completing Panchromatic Spectra for High Priority HWO Target Stars</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18011.pro">18011</a></td> <td>Na'ama Hallakoun, Weizmann Institute of Science</td> <td>White dwarfs with inconsistent ages in young open clusters</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18050.pro">18050</a></td> <td>Hannah Bish, Space Telescope Science Institute</td> <td>Reaping the Whirlwind: Accretion & Outflow in the Inner Milky Way</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18079.pro">18079</a></td> <td>Sumit Sarbadhicary, The Johns Hopkins University</td> <td>An HST Near-UV SNAP + Roman survey of extended star-forming disks in nearby galaxies</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18095.pro">18095</a></td> <td>Sean Linden, Rochester Institute of Technology</td> <td>The Hidden Engines That Could: Tracing Clump Formation and Evolution in the Hearts of Infrared-Luminous AGN Hosts</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18098.pro">18098</a></td> <td>Amy Bonsor, University of Cambridge</td> <td>Is Sulfur stored in the refractory or volatile component of planetary building blocks?</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18112.pro">18112</a></td> <td>Julien Wolf, Max Planck Institute for Astronomy</td> <td>Beyond the Quasar Redshift Frontier: Uncovering Rapidly Accreting Supermassive Black Holes at z>8 with HST/WFC3 and Euclid</td> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Calibration Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17947.pro">17947</a></td> <td>Aidan Pidgeon, Space Telescope Science Institute</td> <td>WFC3 UVIS CCD Daily Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17949.pro">17949</a></td> <td>Isabel Rivera, Space Telescope Science Institute</td> <td>WFC3 UVIS CCD Unflashed (CTE) Monitor</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17972.pro">17972</a></td> <td>Benjamin Kuhn, Space Telescope Science Institute</td> <td>WFC3 CSM Monitor with Earth Flats</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/17978.pro">17978</a></td> <td>Alyssa Guzman, Space Telescope Science Institute</td> <td>CCD Daily Monitor (Part 2)</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18155.pro">18155</a></td> <td>Matthew Dallas, Space Telescope Science Institute</td> <td>STIS CCD Dark Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18158.pro">18158</a></td> <td>Joshua Lothringer, Space Telescope Science Institute</td> <td>STIS CCD Bias and Read Noise Monitor Part 2</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18171.pro">18171</a></td> <td>Jacqueline Brown, Space Telescope Science Institute</td> <td>STIS NUV MAMA Dark Monitor</td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/18172.pro">18172</a></td> <td>Jacqueline Brown, Space Telescope Science Institute</td> <td>STIS MAMA NUV Flat-Field Monitor</td> </tr> <tr> <td colspan="3" align="center" style="background-color: #eeeeee"><strong>Other Observations Scheduled</strong></td> </tr> <tr> <td align="center"><a href="http://www.stsci.edu/hst/phase2-public/15601.pro">15601</a></td> <td>David Sahnow, Space Telescope Science Institute</td> <td>COS FUV DCE Memory Dump</td> </tr> </tbody> </table>

[JWST Observer] Latest News: Presentations from the 20th JSTUC Meeting Are Now Available

Tue, 19 May 2026 14:10:00 GMT

<center class="wrapper" style="width: 100%; background: #f2f2f2; text-align: left;">  <div style="display:none;font-size:1px;line-height:1px;max-height:0px;max-width:0px;opacity:0;overflow:hidden;mso-hide:all;font-family: sans-serif;"> </div>   <div style="max-width: 600px; margin: auto;" class="email-container">   <table role="presentation" border="0" align="center" width="100%" style="max-width: 600px;"> <tbody> <tr> <td style="padding: 20px 0; text-align: center"> <a href="https://www.stsci.edu" title="This link takes you to the STScI website."> <img src="http://www.stsci.edu/files/live/sites/www/files/home/jwst/news-events/news/_images/stsci-logo.png" width="194" height="35" alt="STScI logo" border="0" style="height: auto; font-family: sans-serif; font-size: 15px; line-height: 20px;"> </a> </td> </tr> </tbody> </table>   <table role="presentation" border="0" align="center" width="100%" style="max-width: 600px;"> <tbody> <tr> <td style="text-align: center;font-family: sans-serif; font-size: 32px; line-height: 40px; background: #012228; color: #ffffff; padding: 40px 10px 40px;" class="stack-column-center"> <p style="margin: 0;">JWST Observer Latest News</p> </td> </tr>  <tr> <td bgcolor="#ffffff"> <img src="http://www.stsci.edu/files/live/sites/www/files/home/jwst/news-events/news/_images/newsletter-banner.jpg" width="600" height="" alt="newsletter masthead image" border="0" align="center" style="width: 100%; max-width: 600px; height: auto; background: #dddddd; font-family: sans-serif; font-size: 15px; line-height: 20px;" class="g-img"> </td> </tr>  <p></p> <tr> <td bgcolor="3D#ffffff"> <table role="presentation" border="0" width="100%" style="background-color:#ffffff;"> <tbody> <tr> <td style="padding: 40px; font-family: sans-serif; font-size: 15px; line-height: 20px; color: #555555;"> <h2 style="margin: 0 0 10px 0; font-family: sans-serif; font-size: 18px; line-height: 21px; color: #333333; font-weight: bold; text-align:center;"><a href="http://www.stsci.edu/contents/news/jwst/2026/presentations-from-the-20th-jstuc-meeting-are-now-available.html" title="This link takes you to the JWST Observer website.">Presentations from the 20th JSTUC Meeting Are Now Available</a></h2> <p style="margin: 0; text-align:center;">The latest JSTUC meeting included presentations on JWST Mission updates, Cycle 5 results, Cycle 6 plans, update on the Rocky Worlds DDT program, and various other updates.</p> </td> </tr> <tr> <td style="padding: 0 40px; font-family: sans-serif; font-size: 15px; line-height: 20px; color: #555555;">  <table role="presentation" border="0" align="center" style="margin: auto;"> <tbody> <tr> <td style="border-radius: 12px; background: #003399; text-align: center;" class="button-td"> <a href="https://www.stsci.edu/jwst/news-events/news" title="This link takes you to the JWST Observer website." style="background: #F8AF29; border: 15px solid #F8AF29; font-family: sans-serif; font-size: 13px; line-height: 1.1; text-align: center; text-decoration: none; display: block; border-radius: 3px; font-weight: bold;" class="button-a"> <span style="color:#000000;" class="button-link">View All JWST Observer News</span> </a> </td> </tr> </tbody> </table> </td> </tr>  <tr> <td aria-hidden="true" height="40" style="font-size: 0; line-height: 0;">   </td> </tr>  </tbody> </table> </td> </tr> </tbody> </table> </div> </center>

[HST REPORTS] HST Daily Report

Mon, 18 May 2026 18:30:00 GMT

[HST REPORTS] HST Daily Report

Sun, 17 May 2026 18:30:00 GMT