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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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Identifier
23105, 1994-029A
Orbit
LEO
Last TLE update
3 hours ago
Origin
Manufacturer
TRWC/CTA
Mission
Defense Technology
Bus & Motor
LEOSTAR T-200, Unknown motor
Mass
180 kg wet, 180 kg dry
Launch date (UTC)
1994-05-19 (31 years ago)
Launch vehicle
PEGASUS/HAPS
Launch site
Air Force Western Test Range (AFWTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Cyl + 4 Pan, 3 m
Radar Cross Section
3.076 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 3 hours ago
0 STEP 2
1 23105U 94029A   25126.23155610  .00005968  00000-0  61091-3 0  9992
2 23105  81.9401 228.2327 0088477 152.5171 208.0766 14.87439106659617
Epoch: 2025-05-06T05:33Z
Definitive object data (Epoch: 2025-05-06T05:33:26.447Z)
Latitude
-0°
Longitude
-79.46122°
Altitude
663.62 km
Speed
7.496 km/s
True Right ascension
15h 12m 55s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at TLE epoch
Visualization TLE readout
Latitude
-68.83455°
Longitude
-100.91625°
Altitude
677.235 km
Speed
7.492 km/s
Apparent Right ascension
06h 21m 26s
Apparent Declination
-72° 30' 12"
Sunlit
Object is in full shadow
Visualization observer readout
Local Sidereal Time
16:25:17
Azimuth
194.536° SSW
Elevation
-54.448°
Doppler factor
1
Orbital elements
Apogee altitude
664.745 km
Perigee altitude
541.211 km
Semi-major axis
6,981.115 km
Eccentricity
0.0088477
Inclination
81.9401°
RAAN
228.2327°
Arg. of periapsis
152.5171°
True anomaly
207.60404°
Mean anomaly
208.0766°
Eccentric anomaly
207.83986°
Mean motion
3.72097 °/min
BSTAR
0.00061091
Orbital period
96.75 mins
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Loading SW <> Apogee altitude chart data...

STEP 2 Visibility forecast

Observer location: undefined°, undefined°

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.
4 mins2025-05-06 08:56:56.891Z260.642° W2025-05-06 08:58:56.891Z287.918° WNW13.235°2025-05-06 09:00:56.891Z316.309° NNW
5 mins2025-05-06 19:03:56.891Z327.355° NNW2025-05-06 19:05:56.891Z266.856° W36.148°2025-05-06 19:08:56.891Z196.054° SSW
7 mins2025-05-07 07:30:56.891Z186.831° SSW2025-05-07 07:33:56.891Z185.685° SSW44.023°2025-05-07 07:37:56.891Z8.351° NNE
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