EXPLORER 22, 899
Orbit data source: Space-Track
EXPLORER 22, 899 is a payload satellite owned by GSFC (US) in LEO that was launched on Sat, 10 Oct 1964 UTC via an SCOUT X-4 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.
Request partner network tasking
Embed this page
899 intel report (Beta)
Edit Public Description
Create New Watchlist
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 EXPLORER 22
1 899U 64064A 26120.20814455 .00000163 00000-0 13608-3 0 9997
2 899 79.6911 179.5092 0118517 329.8366 29.5994 13.83039554 98347TLE epoch observation values (Epoch: 2026-04-30T04:59:43.689Z)
Visualization orbit readout
Visualization observer readout
Orbital elements
Other satellites on launch #64 in the year 1964 (1964-10-10 UTC)
EXPLORER 22 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-04-30 14:15:34.083Z | 24.067° NE | 2026-04-30 14:19:34.083Z | 66.101° ENE | 19.356° | 2026-04-30 14:23:34.083Z | 106.811° ESE |
| 11 mins | 2026-04-30 16:00:34.083Z | 340.011° N | 2026-04-30 16:05:34.083Z | 249.393° W | 42.429° | 2026-04-30 16:11:34.083Z | 182.416° SSW |
| 7 mins | 2026-05-01 03:42:34.083Z | 125.224° SE | 2026-05-01 03:45:34.083Z | 84.051° E | 22.506° | 2026-05-01 03:49:34.083Z | 39.778° NE |
| 9 mins | 2026-05-01 05:26:34.083Z | 224.888° SW | 2026-05-01 05:30:34.083Z | 297.065° NW | 34.883° | 2026-05-01 05:35:34.083Z | 357.449° 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 |
|---|
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 |
|---|