EXPLORER 7, 22
Orbit data source: Space-Track
EXPLORER 7, 22 is a payload satellite owned by GSFC (US) in LEO that was launched on Tue, 13 Oct 1959 UTC via a JUNO II launch vehicle from the Air Force Eastern Test Range (AFETR). 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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22 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
ABMA
Mission
Spacecraft
Bus & Motor
S-1, Unknown motor
Mass
41 kg wet, 41 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 7 hours ago
TLE from 7 hours ago
0 EXPLORER 7
1 22U 59009A 25290.81073763 .00015970 00000-0 63091-3 0 9994
2 22 50.2791 212.8452 0086827 230.3536 128.9738 15.22163148763341Epoch: 2025-10-17T19:27Z
TLE epoch observation values (Epoch: 2025-10-17T19:27:27.731Z)
Latitude
-0.00004°
Longitude
-105.57114°
Altitude
537.768 km
Speed
7.574 km/s
True Right ascension
14h 11m 22s
True Declination
0° 00' 00"
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
21:03:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
559.764 km
Perigee altitude
440.321 km
Semi-major axis
6,878.179 km
Eccentricity
0.00868
Inclination
50.2791°
RAAN
212.8452°
Arg. of periapsis
230.3536°
True anomaly
129.74205°
Mean anomaly
128.9738°
Eccentric anomaly
129.35845°
Mean motion
3.80481 °/min
Orbital period
94.62 mins
BSTAR
0.00063091
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Other satellites on launch #9 in the year 1959 (1959-10-13 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.EXPLORER 7 Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-10-18 03:48:22.626Z | 313.333° NW | 2025-10-18 03:51:22.626Z | 8.068° NNE | 38.534° | 2025-10-18 03:55:22.626Z | 108.313° ESE |
| 4 mins | 2025-10-18 05:28:22.626Z | 264.538° W | 2025-10-18 05:30:22.626Z | 221.899° SW | 21.335° | 2025-10-18 05:32:22.626Z | 182.908° SSW |
| 5 mins | 2025-10-18 20:50:22.626Z | 179.699° S | 2025-10-18 20:52:22.626Z | 138.034° SSE | 25.315° | 2025-10-18 20:55:22.626Z | 81.032° E |
| 6 mins | 2025-10-18 22:28:22.626Z | 260.358° W | 2025-10-18 22:31:22.626Z | 346.603° N | 37.67° | 2025-10-18 22:34:22.626Z | 44.861° NE |
| 5 mins | 2025-10-19 00:08:22.626Z | 311.068° NW | 2025-10-19 00:10:22.626Z | 346.61° N | 19.834° | 2025-10-19 00:13:22.626Z | 37.357° NE |
| 5 mins | 2025-10-19 01:48:22.626Z | 333.625° NNW | 2025-10-19 01:50:22.626Z | 11.405° NNE | 20.064° | 2025-10-19 01:53:22.626Z | 60.915° ENE |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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