Universe  ID: 10231

HST SM4 Battery Module Replacement EVA

Battery Modules. The six batteries currently on board the observatory are all original equipment. After more than 17 years of continuous operation the batteries are degrading. In the current condition, the Hubble electrical power system requires careful management of system state of charge to assure adequate power margins for all operational scenarios. This will become more difficult, and will start to constrain operations. The replacement of the two Hubble battery modules (each containing three batteries) will rejuvenate the electrical power system. This, combined with the power system enhancements made in Servicing Mission 3B, will result in ample power margins for the remainder of Hubble's lifetime.

Credits

Bob Sauls (Frassanito and Associates): Lead Animator
Michael McClare (HTSI): Producer
Please give credit for this item to:
NASA Goddard Space Flight Center

Short URL to share this page:
http://svs.gsfc.nasa.gov/10231

Data Used:
HST/WFPC2
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

This item is part of these series:
HST
SM4
Batteries
HST SM4 Animations
Astrophysics Animations

Keywords:
SVS >> HDTV
SVS >> Night
SVS >> Hubble Space Telescope
SVS >> HST
SVS >> Astrophysics
SVS >> SM4
SVS >> Servicing Mission 4
SVS >> Batteries
SVS >> EVA
SVS >> Power System
SVS >> Tools
SVS >> Connections
SVS >> Day
NASA Science >> Universe