Multiple User System for Earth Sensing Facility
Short Name: MUSES
Current Status: Onboard
MUSES was launched in June 2017, achieving Full Operating Capability in September 2017, and has been in continuous operations since that time. The facility accommodates up to four (two “large” and two “small”) robotically installed instruments referred to as “Hosted Payloads”, with inertial attitude estimation, and off-nadir pointing capability enabled by a dedicated inertial measurement unit, star tracker, two-axis gimbal system, and a dedicated Server hosted internally in the International Space Station US Laboratory.
The ISSInternational Space Station orbital inclination (51.6 deg) and MUSES pointing capability (5 deg ISS Starboard/45 deg ISS Port and +/- 25 deg ISS Forward/Aft) provide for a near-global coverage profile with capability up to 55 deg North and 52 deg South in latitude or around 90% of the inhabited Earth.
The MUSES pointing accuracy is better than 30 arc seconds, which corresponds to about 60 m on the ground at an ISS altitude of 400 km and the MUSES Master Time provided to hosted payloads has an accuracy of <±250 μsec to GPS time. Geo-location is sourced from the ISS GPS system and is accurate to ±50 m. All Payload Accommodations include: Test and integration support for MUSES and ISS Launch (pressurized/soft-stowed) services Robotic transfer/installation and return (if desired) services Commanding through Gbit ethernet Payload health and status via Gbit ethernet Primary data transmitted via Gbit ethernet Radiative heat rejection only. Heater Power available Hosted Payload data file(s) transfer, downlink, and delivery Large Payload Accommodations provide support equivalent to small satellite payloads in the 100 lb to 200 lb class. Maximum Mass: 100 kg Maximum Height: 35" (92cm) Maximum Width: ~18" (~46 cm) diameter Maximum Power: 222 W @ 28 Vdc Small Payload Accommodations provide support equivalent to small satellite payloads in the 50 lb to 100 lb class. Maximum Mass: 50 kg Maximum Height: 35" (92 cm) Maximum Width: ~10" (~25 cm) diameter Maximum Power: 112 W @ 28 Vdc
Parent Facility: ELC
Child Facility:
ISS Environment: External
Facility Owner: Teledyne Brown Engineering
Facility Manager: Heath Lester | Teledyne Brown Engineering
Manager Email: [email protected]
Operator/Implementation Partner: Teledyne Brown Engineering
Developer(s): Teledyne Brown Engineering
Sponsoring Space Agency: NASA
