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SORCE, 27651

Orbit data source: Space-Track

SORCE, 27651 is a payload satellite owned by GSFC (US) in LEO that was launched on Sat, 25 Jan 2003 UTC via a PEGASUS XL launch vehicle from the Pegasus Launch, Eastern Range Air Space (ERAS). 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/27651?theme=dark&initialShowStats=false

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Identifier

27651, 2003-004A

Orbit

LEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

OSC

Mission

Operational Civil Astronomy

Bus & Motor

LEOSTAR-2, Unknown motor

Mass

290 kg wet, 290 kg dry

Launch date (UTC)

2003-01-25 (23 years ago)

Launch vehicle

PEGASUS XL

Launch site

Pegasus Launch, Eastern Range Air Space (ERAS)

Object type

Payload

Rocket body

Debris

Shape & HBR

Poly + 6 Pan, 5.0 m

Radar Cross Section

4.750 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 4 hours ago

TLE from 4 hours ago

0 SORCE
1 27651U 03004A   26115.53455563  .00002741  00000-0  20839-3 0  9998
2 27651  39.9899 202.0123 0016557  30.4684 329.7069 15.03417257263977

Epoch: 2026-04-25T12:49Z

TLE epoch observation values (Epoch: 2026-04-25T12:49:45.606Z)

Latitude

-0.00002°

Longitude

156.02071°

Altitude

545.909 km

Speed

7.597 km/s

True Right ascension

13h 28m 02s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

00:08:53

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

570.275 km

Perigee altitude

547.304 km

Semi-major axis

6,936.927 km

Eccentricity

0.00166

Inclination

39.9899°

RAAN

202.0123°

Arg. of periapsis

30.4684°

True anomaly

329.61102°

Mean anomaly

329.7069°

Eccentric anomaly

329.65898°

Mean motion

3.75658 °/min

Orbital period

95.83 mins

BSTAR

0.00020839

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Other satellites on launch #4 in the year 2003 (2003-01-25 UTC)

PEGASUS R/B, 27652

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SORCE Visibility forecast

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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.
6 mins	2026-04-26 09:48:29.057Z	229.172° WSW	2026-04-26 09:51:29.057Z	141.143° SSE	36.931°	2026-04-26 09:54:29.057Z	87.327° E
6 mins	2026-04-26 11:29:29.057Z	267.124° W	2026-04-26 11:31:29.057Z	269.581° W	43.657°	2026-04-26 11:35:29.057Z	87.425° E
6 mins	2026-04-26 13:10:29.057Z	271.253° WNW	2026-04-26 13:12:29.057Z	218.34° SW	42.487°	2026-04-26 13:16:29.057Z	112.348° ESE
5 mins	2026-04-26 14:51:29.057Z	244.274° WSW	2026-04-26 14:53:29.057Z	202.764° SW	21.761°	2026-04-26 14:56:29.057Z	156.552° SSE

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out SORCE, 27651 on other resources

View SORCE, 27651 on NASA - NSSDCA Website

View SORCE, 27651 on Heavens-Above

View SORCE, 27651 on Keep Track

View SORCE, 27651 on Celestrak

View SORCE, 27651 on Gunter's Space Page

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

SORCE, 27651

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 4 hours ago

TLE from 4 hours ago

TLE epoch observation values (Epoch: 2026-04-25T12:49:45.606Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #4 in the year 2003 (2003-01-25 UTC)

SORCE Visibility forecast

Co-orbital & Co-planar RSOs

Check out SORCE, 27651 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 4 hours ago