SBIRS GEO 4 (USA 273) 🛰 - SBIRS GEO-3 (USA 273) - Satellite information • ISS Tracker

SBIRS GEO 4 (USA 273)

41937

Spacetrack Directory Number

2017-01-21

Orbit launches

35798.86 km

Average height

11067.31 km/h

Average velocity

Satellite information SBIRS GEO 4 (USA 273) - SBIRS GEO-3 (USA 273)

Spacetrack Directory Name	SBIRS GEO 4 (USA 273)
Alternative name	SBIRS GEO-3 (USA 273)
Follow SBIRS GEO 4 (USA 273)	SBIRS GEO 4 (USA 273) Tracker
Pass predictions SBIRS GEO 4 (USA 273)	Pass predictions SBIRS GEO 4 (USA 273)
Orbit launches	2017-01-21 (9 years ago)
Days in orbit	3463
Country/organisation of origin	USA (US)
Starting point	AFETR (Kennedy Space Center/Cape Canaveral, USA)
Perigee	35778 km
Apogee	35795 km
Orbit slope (inclination)	2.3°
Laps per day	1
Orbit	GEO
Height SBIRS GEO 4 (USA 273)	35798.86 km

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Additional information SBIRS GEO 4 (USA 273)

SBIRS GEO 4 (USA 273), 41937 is a payload satellite owned by USAF AFSPC (US) in GEO that was launched on Sat, 21 Jan 2017 UTC via an ATLAS V 401 launch vehicle from the Air Force Eastern Test Range (AFETR). Payloads include a variety of satellites, spacecraft, and rockets equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

satellite SBIRS GEO 4 (USA 273) Date of exalting 21.01.2017y. Average height of ISS SBIRS GEO 4 (USA 273) hundred 35798.86 km. Average velocity SBIRS GEO 4 (USA 273) is 11067.31 km/h. Inclination SBIRS GEO 4 (USA 273) satellite 1.97°.

TLE

TLE (Celestrak, 2026-07-16):

SBIRS GEO 4 (USA 273)
1 41937U 17004A   26196.13360793  .00000117  00000+0  00000+0 0  9999
2 41937   2.2958  43.9833 0002589  66.0511 252.7004  1.00281942 34874

OMM (Orbit Mean-Elements Message, 2026-07-16):

{"OBJECT_NAME":"SBIRS GEO-4 (USA 273)","OBJECT_ID":"2017-004A","EPOCH":"2026-07-15T22:01:34.553856","MEAN_MOTION":"1.00281332","ECCENTRICITY":"0.00025975999999999999","INCLINATION":"2.2974000000000001","RA_OF_ASC_NODE":"44.010899999999999","ARG_OF_PERICENTER":"66.729299999999995","MEAN_ANOMALY":"175.0881","EPHEMERIS_TYPE":"0","CLASSIFICATION_TYPE":"U","NORAD_CAT_ID":"41937","ELEMENT_SET_NO":"999","REV_AT_EPOCH":"3488","BSTAR":"0","MEAN_MOTION_DOT":"1.1599999999999999E-6","MEAN_MOTION_DDOT":"0"}

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ISS height, average height of ISS SBIRS GEO 4 (USA 273) for today will be available tomorrow.

Average orbit height SBIRS GEO 4 (USA 273)

Average velocity SBIRS GEO 4 (USA 273)

Average inclination SBIRS GEO 4 (USA 273)

Update time: 2026-07-16 06:13:26

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SBIRS GEO 4 (USA 273)