STEP 2, 23105
Orbit data source: Space-Track
STEP 2, 23105 is a payload satellite owned by USAF STP (US) in LEO that was launched on Thu, 19 May 1994 UTC via a PEGASUS/HAPS 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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23105 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
TRWC/CTA
Mission
Defense Technology
Bus & Motor
LEOSTAR T-200, Unknown motor
Mass
180 kg wet, 180 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl + 4 Pan, 1.5 m
Radar Cross Section
3.076 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 16 hours ago
TLE from 16 hours ago
0 STEP 2
1 23105U 94029A 26235.62856286 .00002451 00000-0 22981-3 0 9993
2 23105 81.9366 105.0066 0082852 38.2548 322.4507 14.91007771729939Epoch: 2026-08-23T15:05Z
TLE epoch observation values (Epoch: 2026-08-23T15:05:07.831Z)
Latitude
0°
Longitude
-93.19791°
Altitude
552.19 km
Speed
7.61 km/s
True Right ascension
07h 00m 01s
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
21:45:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
649.573 km
Perigee altitude
534.078 km
Semi-major axis
6,969.962 km
Eccentricity
0.00829
Inclination
81.9366°
RAAN
105.0066°
Arg. of periapsis
38.2548°
True anomaly
321.86731°
Mean anomaly
322.4507°
Eccentric anomaly
322.15948°
Mean motion
3.7299 °/min
Orbital period
96.52 mins
BSTAR
0.00022981
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Other satellites on launch #29 in the year 1994 (1994-05-19 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.STEP 2 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-08-24 15:22:27.012Z | 139.339° SSE | 2026-08-24 15:25:27.012Z | 83.38° E | 21.241° | 2026-08-24 15:27:27.012Z | 46.082° ENE |
| 4 mins | 2026-08-24 17:01:27.012Z | 263.342° W | 2026-08-24 17:02:27.012Z | 284.89° WNW | 19.904° | 2026-08-24 17:05:27.012Z | 336.254° NNW |
| 7 mins | 2026-08-25 03:05:27.012Z | 356.851° N | 2026-08-25 03:08:27.012Z | 127.17° SE | 43.828° | 2026-08-25 03:12:27.012Z | 168.542° S |
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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