Earlier reports Convert Day of Year

The Hubble Space Telescope

Unlocking the Secrets of the Universe

Daily Report #10809

Period Covered:
07:00 PM February 15, 2026 - 06:59 PM February 16, 2026
(DOY 047/0000z - 047/2359z)

Program Principal Investigator Program Title
Science Observations Scheduled
17702 Simon Gazagnes, University of Texas at Austin Exploring the unexpected interplay between Lyman-alpha and C IV emission using spatially resolved imaging
17723 Roel Lefever, Astronomisches Rechen-Institut Heidelberg The first UV investigation of a massive stripped-envelope core-collapse progenitor at high metallicity: The WO star WR 102
17787 William Cerny, Yale University DELVE 1: The Least Massive Galaxy?
17811 Sebastian Gomez, University of Texas at Austin Host Galaxy Imaging of Luminous Supernovae: The Missing Link of Stripped Envelope Core-Collapse Supernovae
18096 Namrata Roy, Arizona State University COS-RAD: Where Radio Jets Meet the Halo gas
18103 David Thilker, The Johns Hopkins University Anatomy of a fall: Dissecting the environment-driven transformation of late-type Virgo cluster galaxies with HST UV-optical imaging of star clusters, associations, and HII regions
Calibration Observations Scheduled
17906 Annalisa Calamida, Space Telescope Science Institute HST/WFC3 Observations for Cross-Mission Flux Calibration
17945 Aidan Pidgeon, Space Telescope Science Institute WFC3 UVIS Bowtie Monitor
17946 Aidan Pidgeon, Space Telescope Science Institute WFC3 UVIS CCD Daily Monitor Part 1
17969 Benjamin Kuhn, Space Telescope Science Institute WFC3 UVIS Pixel-to-Pixel QE Variations via Internal Flats
17977 Alyssa Guzman, Space Telescope Science Institute CCD Daily Monitor (Part 1)
18154 Matthew Dallas, Space Telescope Science Institute STIS CCD Dark Monitor Part 1
18157 Joshua Lothringer, Space Telescope Science Institute STIS CCD Bias and Read Noise Monitor Part 1
18159 Joshua Lothringer, Space Telescope Science Institute STIS CCD Hot Pixel Annealing
18169 Daniel Stapleton, Space Telescope Science Institute STIS MAMA Spectroscopic Sensitivity and Focus Monitor
Other Observations Scheduled
15601 David Sahnow, Space Telescope Science Institute COS FUV DCE Memory Dump