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: 11 hours ago
TLE from 11 hours ago
0 STEP 2
1 23105U 94029A 26178.24448300 .00002505 00000-0 23725-3 0 9998
2 23105 81.9370 163.5952 0080949 225.2884 134.1724 14.90758779721383Epoch: 2026-06-27T05:52Z
TLE epoch observation values (Epoch: 2026-06-27T05:52:03.331Z)
Latitude
0.00001°
Longitude
160.2199°
Altitude
638.177 km
Speed
7.518 km/s
True Right ascension
10h 54m 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
04:07:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
649.029 km
Perigee altitude
536.174 km
Semi-major axis
6,970.739 km
Eccentricity
0.00809
Inclination
81.937°
RAAN
163.5952°
Arg. of periapsis
225.2884°
True anomaly
134.83305°
Mean anomaly
134.1724°
Eccentric anomaly
134.50319°
Mean motion
3.72928 °/min
Orbital period
96.53 mins
BSTAR
0.00023725
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-06-27 23:42:00.433Z | 179.756° S | 2026-06-27 23:46:00.433Z | 117.577° SE | 43.584° | 2026-06-27 23:50:00.433Z | 13.243° NNE |
| 4 mins | 2026-06-28 09:50:00.433Z | 35.693° NE | 2026-06-28 09:52:00.433Z | 66.438° ENE | 16.271° | 2026-06-28 09:54:00.433Z | 99.948° ESE |
| 6 mins | 2026-06-28 11:27:00.433Z | 326.533° NNW | 2026-06-28 11:30:00.433Z | 262.502° W | 29.831° | 2026-06-28 11:33:00.433Z | 206.268° SW |
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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