Dear Elena, You submitted HOPR 92074 for HST program 16316 on August 18, 2021. After review, the Telescope Time Review Board (TTRB) approves your request and awards two orbits to repeat Visit 24, which suffered a guide-star acquisition problem, leading to blank images. The request is within the 90-day limit and the program is less than 90% complete. Claus Leitherer, head of the Science Policies Group, has concurred in our recommendation. Please work with your PC to prepare a revised Phase II file. With best regards, Andy for the TTRB Space Telescope Science Institute e-mailed to PI/PC/CS Sabbi/Vick/Avila cc: TTRB, HST Mission Office, ACS User Support