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DRUMS, 49401

Orbit data source: Space-Track

DRUMS, 49401 is a payload satellite owned by Kawasaki (JP) 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). 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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<iframe src="https://www.satcat.com/sats-embedded/49401?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/49401?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

49401, 2021-102G

Orbit

SSO

Country

JP / JPN

Related business

Kawasaki Heavy Industries, Ltd. (JP)

Manufacturer

Kawasaki

Mission

Operational Commercial Technology

Bus & Motor

DRUMS, Unknown motor

Mass

46 kg wet, 46 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

Payload

Rocket body

Debris

Shape & HBR

Box, 0.4 m

Radar Cross Section

0.690 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 13 hours ago

TLE from 13 hours ago

0 DRUMS
1 49401U 21102G   26095.00750431  .00007255  00000-0  34069-3 0  9990
2 49401  97.3376 134.1180 0016863 125.8703 234.4101 15.19793236242462

Epoch: 2026-04-05T00:10Z

TLE epoch observation values (Epoch: 2026-04-05T00:10:48.372Z)

Latitude

-0.00002°

Longitude

-61.90266°

Altitude

516.328 km

Speed

7.602 km/s

True Right ascension

08h 56m 28s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

19:27:57

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

515.033 km

Perigee altitude

491.824 km

Semi-major axis

6,881.565 km

Eccentricity

0.00169

Inclination

97.3376°

RAAN

134.118°

Arg. of periapsis

125.8703°

True anomaly

234.25315°

Mean anomaly

234.4101°

Eccentric anomaly

234.33161°

Mean motion

3.802 °/min

Orbital period

94.69 mins

BSTAR

0.00034069

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Other satellites on launch #102 in the year 2021 (2021-11-09 UTC)

OBJECT K, 49404

TEIKYOSAT-4 (OORURI), 49396

EPSILON R/B, 49405 (Decayed)

DRUMS TARGET-2, 58954 (Decayed)

DRUMS TARGET-1, 55685 (Decayed)

ASTERISC, 49395 (Decayed)

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DRUMS 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.
6 mins	2026-04-05 14:57:57.400Z	30.949° NE	2026-04-05 15:00:57.400Z	94.444° ESE	30.986°	2026-04-05 15:03:57.400Z	163.912° S
5 mins	2026-04-06 03:10:57.400Z	213.854° SW	2026-04-06 03:12:57.400Z	265.666° W	27.083°	2026-04-06 03:15:57.400Z	325.041° NNW

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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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

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Check out DRUMS, 49401 on other resources

View DRUMS, 49401 on NASA - NSSDCA Website

View DRUMS, 49401 on Heavens-Above

View DRUMS, 49401 on Keep Track

View DRUMS, 49401 on Celestrak

View DRUMS, 49401 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

DRUMS, 49401

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-04-05T00:10:48.372Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #102 in the year 2021 (2021-11-09 UTC)

DRUMS Visibility forecast

Co-orbital & Co-planar RSOs

Check out DRUMS, 49401 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 13 hours ago