TANSEI 1 (MS-T1)

Satellite information

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Satellite Type and Status

PAYLOADIN ORBIT

Key statistics

Satellite TANSEI 1 (MS-T1) at a glance.

Uptime

19870

Days in orbit

Revolutions

≈ 13.6

Per day

Orbit

LEO

Low Earth Orbit

Inclination

29.7

Latest

Satellite identification and parameters

Extended collection of information and parameters for TANSEI 1 (MS-T1).

Object identification

Identified? True

Debris? False

Object name: TANSEI 1 (MS-T1)

International designator: 1971-011A

Object number (NORAD): 4952

Object ID (CCSDS): 4952

Country: JAPAN (JPN)

Current information (Y/N): Y

RCS size: MEDIUM

Orbital parameters

Period: 105.99 minutes

Inclination: 29.6674 deg

SMA: 7418.869 km

Apoapsis: 1099.771 km

Periapsis: 981.697 km

RAAN: 289.9936 deg

Eccentricy: 0.0079577

Argument of periapsis: 68.8955 deg

Mean anomaly: 343.7952 deg

Mean motion: 13.58614369 rev/day

Mean motion (dot): 0.00000094 rev/day2

B* drag term: 0.000039463 1/REarth

Two-line elements (TLE)

Creation date: July 10, 2025, 7:44 p.m.

Reference frame: TEME

Reference center: EARTH

Epoch: July 10, 2025, 8:53 a.m. UTC

TLE line 0: 0 TANSEI 1 (MS-T1)

TLE line 1: 1 04952U 71011A 25191.37046072 .00000094 00000-0 39463-4 0 9999

TLE line 2: 2 04952 29.6674 289.9936 0079577 68.8955 343.7952 13.58614369702017

Live tracking on map

Real-time ground track for satellite TANSEI 1 (MS-T1).

In-orbit conjunctions

A list of the most updated potential collisions computed for object TANSEI 1 (MS-T1).

Target Orbit TCA Probability of collision Miss distance Type
SL-16 DEB LEO 2024-08-19 01:50:57 0.0001186902 479.0 (m) DEBRIS

Associated space launch

Japanese technological test satellite designed by the Institute of Space and Aeronautical Science, University of Tokyo.

TANSEI 1 (MS-T1) was lifted into orbit during the mission ‘Mu-4S | Tansei-1’, on board a Mu-4S space rocket.

The launch took place on Feb. 16, 1971, 4 a.m. from Mu Center.

For more information about the launch, click the button.

Launch to space Mu-4S | Tansei-1
Mu-4S | Tansei-1

Agency: N/A

Status: Launch Successful

Launch date: Feb. 16, 1971, 4 a.m. UTC

Rocket: Mu-4S

Launch pad: Mu Center

Location: Uchinoura Space Center, Japan

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