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
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 22 hours ago
TLE from 22 hours ago
0 DELTA 1 DEB
1 09977U 73086GG 26260.21800557 .00000210 00000-0 15759-2 0 9992
2 09977 101.8852 347.5678 0069676 9.9584 16.0845 12.54390445335099Epoch: 2026-09-17T05:13Z
TLE epoch observation values (Epoch: 2026-09-17T05:13:55.681Z)
Latitude
25.69356°
Longitude
-92.85544°
Altitude
1,396.641 km
Speed
7.188 km/s
True Right ascension
22h 47m 08s
True Declination
25° 34' 14"
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
20:19:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,498.233 km
Perigee altitude
1,389.234 km
Semi-major axis
7,821.87 km
Eccentricity
0.00697
Inclination
101.8852°
RAAN
347.5678°
Arg. of periapsis
9.9584°
True anomaly
16.30757°
Mean anomaly
16.0845°
Eccentric anomaly
16.19585°
Mean motion
3.13745 °/min
Orbital period
114.74 mins
BSTAR
0.0015759
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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-09-18 04:12:54.759Z | 109.345° ESE | 2026-09-18 04:18:54.759Z | 57.449° ENE | 28.813° | 2026-09-18 04:24:54.759Z | 4.711° NNE |
| 14 mins | 2026-09-18 06:04:54.759Z | 177.101° S | 2026-09-18 06:10:54.759Z | 248.766° W | 64.933° | 2026-09-18 06:18:54.759Z | 336.573° NNW |
| 14 mins | 2026-09-18 18:05:54.759Z | 33.634° NE | 2026-09-18 18:12:54.759Z | 103.908° ESE | 44.541° | 2026-09-18 18:19:54.759Z | 168.529° S |
| 14 mins | 2026-09-18 19:58:54.759Z | 0.969° NNE | 2026-09-18 20:04:54.759Z | 304.572° NW | 42.976° | 2026-09-18 20:12:54.759Z | 231.704° WSW |
| 4 mins | 2026-09-19 03:17:54.759Z | 57.006° ENE | 2026-09-19 03:19:54.759Z | 41.679° NE | 12.42° | 2026-09-19 03:21:54.759Z | 26.762° NE |
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 |
|---|