Orbital Swift - Manual (Page 2)

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Swift
Swift in final checkout at KSC. (NASA photo)
Specifications
Spacecraft
Launch Mass: 1,467 kg (3,234 lb.)
Solar Arrays: Two gimbaled, three panel, triple-junction
GaAs/Ge cells, 2132 W EOL
Orbit: 600 x 600 km @ 20.6 ° inclination
Stabilization: 3-axis, zero momentum bias
Pointing knowledge: 2.2 arcsec P/Y (3 s)
Data Storage: 32.0 Gbits
Data Downlink: STDN/TDRSS, to 2.25 Mbps
Propulsion: None
Mission Life:
2 year mission; 3 year design; 5 year goal
Current Status: Operational
Launch
Launch Vehicle: Delta II 7320-10
Launch Site: Cape Canaveral Air Force Station, Florida
Date: November 20, 2004
Instruments
Burst Alert Telescope (BAT)
Initially identifies coordinates of GRBs to <3 arcmin causing the spacecraft to
change its attitude (slew) to point the XRT and UVOT towards the GRB source.
Covers 10-150 keV; has large coded-aperture; 2 sr FOV; 400 W; 318 kg (optics).
Developed by NASA GSFC.
X-Ray Telescope (XRT)
X-ray CCD imaging spectrometer that measures position, spectrum, and
brightness of GRBs and afterglows from 0.2-10 keV. Has a dynamic range of more
than seven orders of magnitude in flux; 51 cm aperture (tube diameter); 30 cm
mirror aperture; 3.5 m focal length; 23.6 x 23.6 arcmin FOV; 87 W; 198 kg. Jointly
developed by Penn State University, the University of Leicester, and the Brera
Observatory.
Ultra Violet Optical Telescope (UVOT)
Covers wavelengths from 170 to 650 nm with dynamic range from m
B
= 24 to
m
B
= 8; 30 cm aperture; 3.8 m focal length; 17 x 17 arcmin FOV; 125 W. Jointly
developed by Penn State University and the Mullard Space Sciences Laboratory.
Data Availability
Swift data is available to the world via the High Energy Astrophysics Science
Archive Research Center (HEASARC) in the U.S., the U.K. Swift Science Data
Center (UKSSDC) in the U.K., and the Italian Swift Archive Center (ISAC) in Italy.
For more information, visit: http://heasarc.nasa.gov/docs/swift/sdc/
Mission Partners
NASA Goddard Space Flight Center
Procuring Agency: provided program and contract
management, Principal Investigators, and development of
the BAT instrument
Orbital Sciences Corporation
Designed and manufactured spacecraft, supported
payload integration and system test, launch support, and
on-orbit engineering
Penn State University
XRT lead and development, UVOT lead, data-processing
unit development, and on-orbit mission operations
University of Leicester, U.K.
Developed the XRT focal plane array and operates the UK
Swift Data Centre
Mullard Space Science Laboratory, U.K.
Developed the UVOT telescope module
Osservatorio Astronomico di Brera (OAB), Italy
Provided the optics for the XRT and jointly operates the
Italian Swift Data Centre with ASI
Agenzia Spaziale Italiana (ASI), Italy
Provided software for the XRT, provides the Malindi
(Kenya) Ground station, and jointly operates the Italian
Swift Data Centre with OAB