TUBSAT, 25757
Orbit data source: Space-Track
TUBSAT, 25757 is a payload satellite owned by DLR (DE) in SSO that was launched on Wed, 26 May 1999 UTC via a PSLV launch vehicle from the Sirharikota (SRI). 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
Embed this page
Focus sentinelFocus sentinel
25757 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Country
DE / GERRelated business
Manufacturer
TUB
Mission
Operational Civil Imaging
Bus & Motor
TUBSAT, Unknown motor
Mass
45 kg wet, 45 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 1.0 m
Radar Cross Section
0.135 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 20 hours ago
TLE from 20 hours ago
0 TUBSAT
1 25757U 99029B 25305.46688081 .00000212 00000-0 64066-4 0 9992
2 25757 98.6530 288.7139 0013546 326.9549 33.0798 14.52333186400194Epoch: 2025-11-01T11:12Z
TLE epoch observation values (Epoch: 2025-11-01T11:12:18.501Z)
Latitude
-0.00004°
Longitude
79.64027°
Altitude
712.946 km
Speed
7.503 km/s
True Right ascension
19h 14m 51s
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
02:53:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
724.76 km
Perigee altitude
705.542 km
Semi-major axis
7,093.288 km
Eccentricity
0.00135
Inclination
98.653°
RAAN
288.7139°
Arg. of periapsis
326.9549°
True anomaly
33.16464°
Mean anomaly
33.0798°
Eccentric anomaly
33.12221°
Mean motion
3.63305 °/min
Orbital period
99.09 mins
BSTAR
0.000064066
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 1999 (1999-05-26 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.TUBSAT 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 | 2025-11-02 10:57:21.537Z | 52.01° ENE | 2025-11-02 11:00:21.537Z | 97.691° ESE | 20.815° | 2025-11-02 11:03:21.537Z | 140.695° SSE |
| 7 mins | 2025-11-02 12:35:21.537Z | 347.212° N | 2025-11-02 12:38:21.537Z | 288.058° WNW | 31.621° | 2025-11-02 12:42:21.537Z | 225.34° WSW |
| 6 mins | 2025-11-02 22:05:21.537Z | 107.608° ESE | 2025-11-02 22:07:21.537Z | 74.196° E | 23.503° | 2025-11-02 22:11:21.537Z | 13.628° NNE |
| 7 mins | 2025-11-02 23:42:21.537Z | 206.571° SW | 2025-11-02 23:45:21.537Z | 257.241° W | 28.143° | 2025-11-02 23:49:21.537Z | 323.099° NNW |
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 |
|---|
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 ascending order |
|---|