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STPSAT-6, 49817

Orbit data source: Space-Track

STPSAT-6, 49817 is a payload satellite owned by USAF STP (US) in GEO that was launched on Tue, 07 Dec 2021 UTC via an ATLAS V 551 launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft 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.

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Iframe URL

https://www.satcat.com/sats-embedded/49817?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

49817, 2021-118A

Orbit

GEO

Last TLE update

1 day ago

Origin

United States Space Force (US)

Manufacturer

NGAS

Mission

Operational Defense Technology

Bus & Motor

A-500, Unknown motor

Mass

~1,000 kg wet, ~1,000 kg dry

Launch date (UTC)

2021-12-07 (4 years ago)

Launch vehicle

ATLAS V 551

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Pan, 2 m

Radar Cross Section

2.500 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago

0 STPSAT-6
1 49817U 21118A   25189.61214582 -.00000029  00000-0  00000-0 0  9998
2 49817   0.0146 327.9242 0000542 358.1478  69.3362  1.00271329 13129

Epoch: 2025-07-08T14:41Z

TLE epoch observation values (Epoch: 2025-07-08T14:41:29.398Z)

Latitude

0.02113°

Longitude

-111.76148°

Altitude

35,785.415 km

Speed

3.075 km/s

True Right ascension

02h 21m 39s

True Declination

0° 01' 16"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

0.02727°

Longitude

-71.25133°

Altitude

35,786.969 km

Speed

3.075 km/s

Apparent Right ascension

05h 00m 13s

Apparent Declination

-6° 11' 51"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

05:30:16

Azimuth

190.302° SSW

Elevation

43.368°

Doppler factor

Orbital elements

Apogee altitude

35,790.079 km

Perigee altitude

35,785.508 km

Semi-major axis

42,165.93 km

Eccentricity

0.00005

Inclination

0.0146°

RAAN

327.9242°

Arg. of periapsis

358.1478°

True anomaly

Unknown

Mean anomaly

69.3362°

Eccentric anomaly

Unknown

Mean motion

0.25067 °/min

Orbital period

1,436.16 mins

BSTAR

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49817 neighbors

Authenticating...

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Other satellites on launch #118 in the year 2021 (2021-12-07 UTC)

LDPE-1, 49818

ATLAS 5 CENTAUR R/B, 49819

ATLAS 5 CENTAUR DEB, 50214

ASCENT, 51287

STPSAT-6 Visibility forecast

Observer location: undefined°, undefined°

Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
1440 mins	2025-07-09 17:19:09.441Z	190.298° SSW	2025-07-09 19:03:09.441Z	190.3° SSW	34.469°	2025-07-10 17:19:09.441Z	190.297° SSW

Authenticating...

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Check out STPSAT-6, 49817 on other resources

View STPSAT-6, 49817 on NASA - NSSDCA Website

View STPSAT-6, 49817 on Heavens-Above

View STPSAT-6, 49817 on Keep Track

View STPSAT-6, 49817 on Celestrak

View STPSAT-6, 49817 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.