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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
23105 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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 26228.38065446 .00001942 00000-0 18156-3 0 9991
2 23105 81.9375 112.4096 0083287 61.7072 299.2517 14.90971202728850Epoch: 2026-08-16T09:08Z
TLE epoch observation values (Epoch: 2026-08-16T09:08:08.545Z)
Latitude
-0.00001°
Longitude
10.59599°
Altitude
569.923 km
Speed
7.591 km/s
True Right ascension
07h 29m 38s
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
15:48:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
649.991 km
Perigee altitude
533.888 km
Semi-major axis
6,970.076 km
Eccentricity
0.00833
Inclination
81.9375°
RAAN
112.4096°
Arg. of periapsis
61.7072°
True anomaly
298.41478°
Mean anomaly
299.2517°
Eccentric anomaly
298.83366°
Mean motion
3.72981 °/min
Orbital period
96.52 mins
BSTAR
0.00018156
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #29 in the year 1994 (1994-05-19 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.STEP 2 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-08-17 03:24:22.656Z | 20.806° NNE | 2026-08-17 03:27:22.656Z | 68.389° E | 21.716° | 2026-08-17 03:30:22.656Z | 122.379° SE |
| 5 mins | 2026-08-17 05:03:22.656Z | 302.899° NW | 2026-08-17 05:05:22.656Z | 260.263° W | 22.121° | 2026-08-17 05:08:22.656Z | 215.554° SW |
| 6 mins | 2026-08-17 17:29:22.656Z | 217.72° SW | 2026-08-17 17:31:22.656Z | 261.772° W | 33.386° | 2026-08-17 17:35:22.656Z | 353.592° 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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
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 |
|---|