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[1]CelesTrak (opens in new tab)orbital elements
[2]GCAT / J. McDowell (opens in new tab)launch catalog
[3]Wikidata (opens in new tab)metadata enrichment
[4]SatNOGS DB (opens in new tab)radio transmitters (CC BY-SA 4.0)

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OrbitalWiki / open database / ODbL-1.0Orbital data is approximate and not for operations

TIANMU-1 03, NORAD 55973 orbital data · OrbitalWiki

Catalog Operators Showcases Method Developers Pricing

Index/Operators/Aerospace Tianmu Satellite Tech. Co. Ltd./55973

SSOOperationalPayload

TIANMU-1 03

NORAD 55973COSPAR 2023-039AEpoch Oct 21, 2026

TIANMU-1 03 is a payload in SSO orbit, operated by Aerospace Tianmu Satellite Tech. Co. Ltd., launched 2023.

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Operator

Aerospace Tianmu Satellite Tech. Co. Ltd.Probable

via GCAT — Jonathan McDowell's General Catalog

Country

ChinaProbable

via GCAT — Jonathan McDowell's General Catalog

Launch date

2023-03-22Probable

via GCAT — Jonathan McDowell's General Catalog

Object class

PAYLOADProbable

via GCAT — Jonathan McDowell's General Catalog

Operational status

OPERATIONALProbable

via CelesTrak SATCAT

Launch mass (kg)

50Probable

via GCAT — Jonathan McDowell's General Catalog

Orbital regime

LLEO/SProbable

via GCAT — Jonathan McDowell's General Catalog

Launch site

Not availableUnknown

source unknown

Launch vehicle

Not availableUnknown

source unknown

Not available in the current data

· Alternate names
· Constellation membership

Data quality

Quality90 / 100

OrbitalWiki

Open satellite records with source claims attached. Use the UI for lookup or the API for products, research, and internal tools.

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Statistics

How many satellites are in orbit right now?
How many satellites are launched each year?
How many satellites still work?
How many Starlink satellites are there?
Statistics
What is the oldest satellite still in orbit?
What orbits are satellites in?
Which countries operate the most satellites?
Which operators run the most satellites?

Radio

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Pass predictions
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Contact
Dashboard
Log in
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Sources

[1]CelesTrak (opens in new tab)orbital elements
[2]GCAT / J. McDowell (opens in new tab)launch catalog
[3]Wikidata (opens in new tab)metadata enrichment

Related satellites

TIANMU-1 04Same launch
TIANMU-1 05Same launch
2023-003ESame operator
2023-003CSame operator
TIANMU-1 06Same operator

Where this record sits

All Aerospace Tianmu Satellite Tech. Co. Ltd. satellites
China satellites and space activity
Everything in SSO

It went up on launch 2023-039, alongside everything else on that flight

See it moving on the 3D globe alongside every other active object, propagated in your browser.

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Use this data

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//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Oct 23, 2026.

[4]

SatNOGS DB (opens in new tab)radio transmitters (CC BY-SA 4.0)

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OrbitalWiki / open database / ODbL-1.0Orbital data is approximate and not for operations