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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

MUOS-4, NORAD 40887 orbital data · OrbitalWiki

Catalog Operators Showcases Method Developers Pricing

Index/Operators/Space and Naval Warfare Systems Command, San Diego/40887

GEOOperationalPayload

MUOS-4

NORAD 40887COSPAR 2015-044AEpoch Sep 8, 2026

MUOS-4 is a payload in GEO orbit, operated by Space and Naval Warfare Systems Command, San Diego, launched 2015.

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Operator

Space and Naval Warfare Systems Command, San DiegoProbable

via GCAT — Jonathan McDowell's General Catalog

Country

United StatesProbable

via GCAT — Jonathan McDowell's General Catalog

Launch date

2015-09-02Probable

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)

6800Probable

via GCAT — Jonathan McDowell's General Catalog

Orbital regime

GEO/IProbable

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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How many Starlink satellites are there?
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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?

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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

MUOS-5Same operator
MUOS-3Same operator
MUOS-2Same operator
MUOS-1Same operator
TJS-1Same orbit class

Where this record sits

All Space and Naval Warfare Systems Command, San Diego satellites
United States satellites and space activity
Everything in GEO

It went up on launch 2015-044, 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 Sep 9, 2026.

[4]

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

Legal

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