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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

INTELSAT 21 (IS-21), NORAD 38749 orbital data · OrbitalWiki

Catalog Operators Showcases Method Developers Pricing

Index/Operators/Intelsat S.A., US headquarters/38749

GEOOperationalPayload

INTELSAT 21 (IS-21)

NORAD 38749COSPAR 2012-045AEpoch Sep 14, 2026

INTELSAT 21 (IS-21) is a payload in GEO orbit, operated by Intelsat S.A., US headquarters, launched 2012.

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Operator

Intelsat S.A., US headquartersProbable

via GCAT — Jonathan McDowell's General Catalog

Country

United StatesProbable

via GCAT — Jonathan McDowell's General Catalog

Launch date

2012-08-19Probable

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)

5984Probable

via GCAT — Jonathan McDowell's General Catalog

Orbital regime

GEO/DProbable

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

Quality95 / 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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Contact
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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

INTELSAT 23 (IS-23)Same operator
INTELSAT 20 (IS-20)Same operator
INTELSAT 34 (IS-34)Same operator
INTELSAT 19 (IS-19)Same operator
INTELSAT 36 (IS-36)Same operator

Where this record sits

All Intelsat S.A., US headquarters satellites
United States satellites and space activity
Everything in GEO

It went up on launch 2012-045, 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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//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Sep 14, 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