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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
9977 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 DELTA 1 DEB
1 09977U 73086GG 25353.16708111 .00000195 00000-0 14814-2 0 9994
2 09977 101.8909 74.7643 0078375 174.2793 216.2492 12.54263754300981Epoch: 2025-12-19T04:00Z
TLE epoch observation values (Epoch: 2025-12-19T04:00:35.807Z)
Latitude
29.34057°
Longitude
-80.16118°
Altitude
1,499.704 km
Speed
7.094 km/s
True Right ascension
04h 32m 00s
True Declination
29° 12' 28"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
07:47:40
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,505.569 km
Perigee altitude
1,382.953 km
Semi-major axis
7,822.398 km
Eccentricity
0.00784
Inclination
101.8909°
RAAN
74.7643°
Arg. of periapsis
174.2793°
True anomaly
215.72232°
Mean anomaly
216.2492°
Eccentric anomaly
215.98534°
Mean motion
3.13714 °/min
Orbital period
114.75 mins
BSTAR
0.0014814
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #86 in the year 1973 (1973-11-06 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.DELTA 1 DEB Visibility forecast
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-12-20 16:54:21.456Z | 55.517° ENE | 2025-12-20 16:58:21.456Z | 87.38° E | 17° | 2025-12-20 17:03:21.456Z | 128.433° SE |
| 15 mins | 2025-12-20 18:45:21.456Z | 16.332° NNE | 2025-12-20 18:52:21.456Z | 304.156° NW | 44.907° | 2025-12-20 19:00:21.456Z | 202.247° SSW |
| 8 mins | 2025-12-20 20:40:21.456Z | 339.994° N | 2025-12-20 20:44:21.456Z | 305.485° NW | 18.263° | 2025-12-20 20:48:21.456Z | 272.879° WNW |
| 12 mins | 2025-12-21 03:52:21.456Z | 105.573° ESE | 2025-12-21 03:58:21.456Z | 52.145° ENE | 25.907° | 2025-12-21 04:04:21.456Z | 3.348° NNE |
| 15 mins | 2025-12-21 05:43:21.456Z | 174.744° S | 2025-12-21 05:50:21.456Z | 268.712° W | 42.75° | 2025-12-21 05:58:21.456Z | 337.615° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|