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Swift Gamma-Ray Burst Mission

Swift Gamma-Ray Burst Mission
NASA Swift Gamma-Ray Burst Mission (transparent).png
Names Explorer-84
MIDEX-3
Mission type Gamma-ray astronomy
Operator NASA / GSFC
COSPAR ID 2004-047A
SATCAT no. 28485
Website swift.gsfc.nasa.gov
Mission duration Planned: 2 years
Elapsed: 12 years, 3 months and 11 days
Spacecraft properties
Bus LEOStar-3
Manufacturer Spectrum Astro
Launch mass 1,467 kg (3,234 lb)
Dry mass 613 kg (1,351 lb)
Payload mass 843 kg (1,858 lb)
Dimensions 5.6 × 5.4 m (18.5 × 17.75 ft)
Power 2132 W
Start of mission
Launch date November 20, 2004, 17:16 UTC (2004-11-20UTC17:16Z)
Rocket Delta II 7320-10C
Launch site Cape Canaveral SLC-17
Contractor Boeing
Orbital parameters
Reference system Geocentric
Regime Low Earth
Semi-major axis 6,939 km (4,312 mi)
Eccentricity 0.0011647
Perigee 560.1 km (348.0 mi)
Apogee 576.3 km (358.1 mi)
Inclination 20.5575 degrees
Period 95.9 minutes
RAAN 62.5406 degrees
Argument of perigee 261.5597 degrees
Mean anomaly 98.3516 degrees
Mean motion 15.01896267 rev/day
Epoch July 7, 2015, 09:19:41 UTC
Revolution no. 58103
Main telescope
Type BATCoded mask
XRTWolter type I
UVOTRitchey-Chrétien
Diameter XRT: 30 cm (12 in)
UVOT: 30 cm (12 in)
Focal length XRT: 3.5 m (11 ft)
Collecting area BAT: 5,200 cm2 (810 sq in)
XRT: 110 cm2 (17 sq in)
Wavelengths γ-ray / X-ray / UV / Visible

Swift Gamma-Ray Burst Mission patch (transparent).png
Swift mission patch

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Swift Gamma-Ray Burst Mission patch (transparent).png
Swift mission patch

The Swift Gamma-Ray Burst Mission consists of a robotic spacecraft called Swift, which was launched into orbit on November 20, 2004, at 17:16:00 UTC on a Delta II 7320-10C expendable launch vehicle. Headed by principal investigator Neil Gehrels, NASA Goddard Space Flight Center, the mission was developed in a joint partnership between Goddard and an international consortium from the United States, United Kingdom, and Italy. It is part of NASA's Medium Explorer program (MIDEX). The mission is operated at Pennsylvania State University.

Swift is a multi-wavelength space observatory dedicated to the study of gamma-ray bursts (GRBs). Its three instruments work together to observe GRBs and their afterglows in the gamma-ray, X-ray, ultraviolet, and optical wavebands.


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