DELTA 1 DEB, 9977

Orbit data source: Space-Track

DELTA 1 DEB, 9977 is space debris in SSO originally from a launch on Tue, 06 Nov 1973 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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Iframe URL

https://www.satcat.com/sats-embedded/9977?theme=dark&initialShowStats=false

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ISO8601 Format

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ISO8601 Format

Identifier

9977, 1973-086GG

Orbit

SSO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1973-11-06 (52 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.1 m

Radar Cross Section

Small (<0.1 m²)

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Last TLE update: 10 hours ago

TLE from 10 hours ago

0 DELTA 1 DEB
1  9977U 73086GG  25294.72819596  .00000472  00000-0  31912-2 0  9996
2  9977 101.8927  16.1476 0073635 281.2350 234.6775 12.54210194293650

Epoch: 2025-10-21T17:28Z

TLE epoch observation values (Epoch: 2025-10-21T17:28:36.130Z)

Latitude

24.23108°

Longitude

-91.00271°

Altitude

1,483.163 km

Speed

7.109 km/s

True Right ascension

13h 26m 14s

True Declination

24° 06' 52"

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

22:03:28

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,502.086 km

Perigee altitude

1,386.882 km

Semi-major axis

7,822.621 km

Eccentricity

0.00736

Inclination

101.8927°

RAAN

16.1476°

Arg. of periapsis

281.235°

True anomaly

233.9927°

Mean anomaly

234.6775°

Eccentric anomaly

234.33473°

Mean motion

3.137 °/min

Orbital period

114.76 mins

BSTAR

0.0031912

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Other satellites on launch #86 in the year 1973 (1973-11-06 UTC)

DELTA 1 DEB, 42590

DELTA 1 DEB, 42575

DELTA 1 DEB, 7047 (Decayed)

DELTA 1 DEB, 7201 (Decayed)

DELTA 1 DEB *, 9703

NOAA 3, 6920

DELTA 1 DEB, 7125 (Decayed)

DELTA 1 DEB, 7197 (Decayed)

DELTA 1 DEB, 7052

DELTA 1 DEB, 7204 (Decayed)

DELTA 1 DEB, 9700 (Decayed)

DELTA 1 DEB, 7206 (Decayed)

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DELTA 1 DEB 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.
14 mins	2025-10-22 04:15:43.826Z	124.276° SE	2025-10-22 04:22:43.826Z	55.274° ENE	33.749°	2025-10-22 04:29:43.826Z	356.078° N
14 mins	2025-10-22 06:08:43.826Z	193.915° SSW	2025-10-22 06:14:43.826Z	255.888° W	35.506°	2025-10-22 06:22:43.826Z	330.074° NNW
16 mins	2025-10-22 18:08:43.826Z	23.335° NE	2025-10-22 18:16:43.826Z	92.394° ESE	41.996°	2025-10-22 18:24:43.826Z	184.671° SSW
12 mins	2025-10-22 20:03:43.826Z	352.378° N	2025-10-22 20:08:43.826Z	308.25° NW	27.134°	2025-10-22 20:15:43.826Z	248.278° W

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 1 DEB, 9977 on other resources

View DELTA 1 DEB, 9977 on Heavens-Above

View DELTA 1 DEB, 9977 on Keep Track

View DELTA 1 DEB, 9977 on Celestrak

View DELTA 1 DEB, 9977 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 1 DEB, 9977

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2025-10-21T17:28:36.130Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #86 in the year 1973 (1973-11-06 UTC)

DELTA 1 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 DEB, 9977 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago