DMSP 5D-2 F11 (USA 73), 21798
Orbit data source: Space-Track
DMSP 5D-2 F11 (USA 73), 21798 is a payload satellite owned by USAF SSD (US) in SSO that was launched on Thu, 28 Nov 1991 UTC via an ATLAS E launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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21798 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Last TLE update
1 day ago
Origin
Manufacturer
GE/East Windsor
Mission
Non-operational Defense Weather
Bus & Motor
BLOCK 5D, STAR 37S
Mass
1,456 kg wet, 749 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl + 1 Pan, 5 m
Radar Cross Section
4.290 m², Large (>1 m²)
Expand to show TLE details & history
TLE from 1 day ago
0 DMSP 5D-2 F11 (USA 73)
1 21798U 91082A 25159.70168630 .00000089 00000-0 65341-4 0 9990
2 21798 98.7281 190.3242 0011737 263.1550 96.8290 14.17310091732223Epoch: 2025-06-08T16:50Z
TLE epoch observation values (Epoch: 2025-06-08T16:50:25.696Z)
Latitude
0.00002°
Longitude
40.39366°
Altitude
838.391 km
Speed
7.433 km/s
True Right ascension
12h 41m 17s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
-41.03394°
Longitude
49.13239°
Altitude
845.736 km
Speed
7.431 km/s
Apparent Right ascension
15h 28m 38s
Apparent Declination
-46° 06' 12"
Sunlit
Visualization observer readout
Local Sidereal Time
05:58:29
Azimuth
115.321° SE
Elevation
-62.19°
Doppler factor
1
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Other satellites on launch #82 in the year 1991 (1991-11-28 UTC)
DMSP 5D-2 F11 (USA 73) Visibility forecast
Observer location: undefined°, undefined°
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 | 2025-06-10 01:10:15.017Z | 125.113° SE | 2025-06-10 01:14:15.017Z | 65.953° ENE | 28.941° | 2025-06-10 01:18:15.017Z | 9.315° NNE |
| 8 mins | 2025-06-10 02:51:15.017Z | 213.006° SW | 2025-06-10 02:54:15.017Z | 258.548° W | 27.117° | 2025-06-10 02:59:15.017Z | 325.173° NNW |
| 4 mins | 2025-06-10 13:32:15.017Z | 74.255° E | 2025-06-10 13:33:15.017Z | 86.207° E | 13.686° | 2025-06-10 13:36:15.017Z | 120.586° SE |
| 9 mins | 2025-06-10 15:10:15.017Z | 6.984° NNE | 2025-06-10 15:14:15.017Z | 303.292° NW | 43.144° | 2025-06-10 15:19:15.017Z | 204.646° SW |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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