OBJECT D, 49398

Orbit data source: Space-Track

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Recently launched and/or uncataloged satellites may have evolving metadata. Metadata may include but not limited to: Owner, Maufacturer, Bus, Motor, and Mission.

OBJECT D, 49398 is a Japanese satellite in SSO that was launched on Tue, 09 Nov 2021 UTC via an EPSILON launch vehicle from the Kagoshima Space Center University Of Tokyo (KSCUT). Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.

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Identifier
49398, 2021-102D
Orbit
SSO
Last TLE update
20 hours ago
Origin
Manufacturer
VNSC/MEISEI
Mission
Non-operational Civil Com/Tech
Bus & Motor
CUBESAT 3U, Unknown motor
Mass
4 kg wet, 4 kg dry
Launch date (UTC)
2021-11-09 (4 years ago)
Launch vehicle
EPSILON
Launch site
Kagoshima Space Center University Of Tokyo (KSCUT)
Object type
Unknown
Shape & HBR
Box + 1 Ant, 7 m
Radar Cross Section
0.281 m², Small (<0.1 m²)

Expand to show TLE details & history

TLE from 20 hours ago
0 OBJECT D
1 49398U 21102D   25132.86129404  .00009519  00000-0  42760-3 0  9992
2 49398  97.3732 176.9428 0011530 169.7495 190.3978 15.21304227192987
Epoch: 2025-05-12T20:40Z
Definitive object data (Epoch: 2025-05-12T20:40:15.805Z)
Latitude
-0.00002°
Longitude
-3.99136°
Altitude
512.803 km
Speed
7.603 km/s
True Right ascension
11h 47m 46s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at TLE epoch
Visualization TLE readout
Latitude
37.10942°
Longitude
-177.60581°
Altitude
499.814 km
Speed
7.622 km/s
Apparent Right ascension
21h 22m 02s
Apparent Declination
3° 52' 02"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
00:40:33
Azimuth
244.476° WSW
Elevation
32.612°
Doppler factor
1
Orbital elements
Apogee altitude
506.797 km
Perigee altitude
490.939 km
Semi-major axis
6,877.005 km
Eccentricity
0.001153
Inclination
97.3732°
RAAN
176.9428°
Arg. of periapsis
169.7495°
True anomaly
190.37399°
Mean anomaly
190.3978°
Eccentric anomaly
190.38589°
Mean motion
3.80578 °/min
BSTAR
0.0004276
Orbital period
94.59 mins
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OBJECT D 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.
5 mins2025-05-14 02:48:20.921Z154.035° SSE2025-05-14 02:50:20.921Z100.958° ESE42.19°2025-05-14 02:53:20.921Z355.829° N
5 mins2025-05-14 15:52:20.921Z5.942° NNE2025-05-14 15:54:20.921Z259.382° W44.219°2025-05-14 15:57:20.921Z197.865° SSW
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