DELTA 2 R/B, 25637

Orbit data source: Space-Track

DELTA 2 R/B, 25637 is space debris in SSO originally from a launch on Tue, 23 Feb 1999 UTC launched from the Air Force Western Test Range (AFWTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.

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https://www.satcat.com/sats-embedded/25637?theme=dark&initialShowStats=false

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Identifier

25637, 1999-008D

Orbit

SSO

Country

Related business

Boeing (US)

Manufacturer

Boeing/HB

Mission

Spacecraft

Bus & Motor

DELTA/0020, Unknown motor

Mass

919 kg wet, 919 kg dry

Launch date (UTC)

1999-02-23 (27 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + Cone, 3.0 m

Radar Cross Section

13.645 m², Large (>1 m²)

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Last TLE update: 2 days ago

TLE from 2 days ago

0 DELTA 2 R/B
1 25637U 99008D   26154.62618937  .00000362  00000-0  92557-4 0  9992
2 25637  96.4827  54.0182 0135352 294.2270 128.5433 14.49276341438794

Epoch: 2026-06-03T15:01Z

TLE epoch observation values (Epoch: 2026-06-03T15:01:42.761Z)

Latitude

63.32063°

Longitude

-76.49096°

Altitude

799.667 km

Speed

7.428 km/s

True Right ascension

02h 44m 04s

True Declination

63° 10' 59"

Sunlit

Object was in daylight 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

21:11:53

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

821.18 km

Perigee altitude

628.894 km

Semi-major axis

7,103.174 km

Eccentricity

0.01354

Inclination

96.4827°

RAAN

54.0182°

Arg. of periapsis

294.227°

True anomaly

129.74366°

Mean anomaly

128.5433°

Eccentric anomaly

129.14475°

Mean motion

3.62547 °/min

Orbital period

99.3 mins

BSTAR

0.000092557

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Other satellites on launch #8 in the year 1999 (1999-02-23 UTC)

DELTA 2 DEB, 39737 (Decayed)

DELTA 2 DEB, 39734 (Decayed)

DELTA 2 DEB, 39736 (Decayed)

DELTA 2 DEB, 39735 (Decayed)

SUNSAT, 25636

ORSTED, 25635

DELTA 2 DEB, 39739 (Decayed)

ARGOS, 25634

DELTA 2 DEB, 39738 (Decayed)

DELTA 2 DEB, 39740 (Decayed)

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DELTA 2 R/B 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.
8 mins	2026-06-05 16:34:45.564Z	127.593° SE	2026-06-05 16:38:45.564Z	61.606° ENE	27.996°	2026-06-05 16:42:45.564Z	9.657° NNE
7 mins	2026-06-05 18:13:45.564Z	218.399° SW	2026-06-05 18:16:45.564Z	266.447° W	25.062°	2026-06-05 18:20:45.564Z	323.15° NNW
4 mins	2026-06-06 04:40:45.564Z	70.53° E	2026-06-06 04:41:45.564Z	82.714° E	13.761°	2026-06-06 04:44:45.564Z	118.056° SE
9 mins	2026-06-06 06:16:45.564Z	3.742° NNE	2026-06-06 06:20:45.564Z	306.067° NW	42.595°	2026-06-06 06:25:45.564Z	202.554° SW

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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 DELTA 2 R/B, 25637 on other resources

View DELTA 2 R/B, 25637 on Heavens-Above

View DELTA 2 R/B, 25637 on Keep Track

View DELTA 2 R/B, 25637 on Celestrak

View DELTA 2 R/B, 25637 on Gunter's Space Page

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

DELTA 2 R/B, 25637

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-03T15:01:42.761Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #8 in the year 1999 (1999-02-23 UTC)

DELTA 2 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 2 R/B, 25637 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago