DELTA 1 DEB, 9978
Orbit data source: Space-Track
DELTA 1 DEB, 9978 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
9978 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
Expand to show TLE details & historyLast TLE update: 22 hours ago
TLE from 22 hours ago
0 DELTA 1 DEB
1 09978U 73086GH 26260.34329439 -.00000108 00000-0 -51918-3 0 9998
2 09978 102.0777 200.6776 0052787 141.2066 10.5003 12.32996774304013Epoch: 2026-09-17T08:14Z
TLE epoch observation values (Epoch: 2026-09-17T08:14:20.635Z)
Latitude
27.54441°
Longitude
-92.81429°
Altitude
1,498.404 km
Speed
7.136 km/s
True Right ascension
01h 48m 12s
True Declination
27° 25' 01"
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
23:23:53
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,575.785 km
Perigee altitude
1,492.254 km
Semi-major axis
7,912.156 km
Eccentricity
0.00528
Inclination
102.0777°
RAAN
200.6776°
Arg. of periapsis
141.2066°
True anomaly
10.61126°
Mean anomaly
10.5003°
Eccentric anomaly
10.55571°
Mean motion
3.0839 °/min
Orbital period
116.74 mins
BSTAR
-0.00051918
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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-09-18 07:27:34.230Z | 47.395° ENE | 2026-09-18 07:33:34.230Z | 93.094° ESE | 20.729° | 2026-09-18 07:38:34.230Z | 132.943° SE |
| 15 mins | 2026-09-18 09:21:34.230Z | 15.129° NNE | 2026-09-18 09:28:34.230Z | 321.768° NNW | 78.974° | 2026-09-18 09:36:34.230Z | 205.75° SW |
| 9 mins | 2026-09-18 11:18:34.230Z | 339.885° N | 2026-09-18 11:22:34.230Z | 307.273° NW | 18.948° | 2026-09-18 11:27:34.230Z | 270.551° WNW |
| 13 mins | 2026-09-18 18:37:34.230Z | 114.526° SE | 2026-09-18 18:43:34.230Z | 58.997° ENE | 36.795° | 2026-09-18 18:50:34.230Z | 359.012° N |
| 15 mins | 2026-09-18 20:30:34.230Z | 184.062° SSW | 2026-09-18 20:37:34.230Z | 252.275° W | 54.346° | 2026-09-18 20:45:34.230Z | 332.077° NNW |
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 |
|---|