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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

FOSSASAT-2E21, NORAD 64536 orbital data · OrbitalWiki

Catalog Operators Showcases Method Developers Pricing

Index/Operators/WiseKey International Holding Ltd/64536

SSOOperationalPayload

FOSSASAT-2E21

NORAD 64536COSPAR 2025-135JEpoch Oct 6, 2026

FOSSASAT-2E21 is a payload in SSO orbit, operated by WiseKey International Holding Ltd, launched 2025.

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Operator

WiseKey International Holding LtdProbable

via GCAT — Jonathan McDowell's General Catalog

Country

SwitzerlandProbable

via GCAT — Jonathan McDowell's General Catalog

Launch date

2025-06-23Probable

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)

4Probable

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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How many satellites are in orbit right now?
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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?

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Dashboard
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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

OTTER PUP 2Same launch
ROADS 1Same launch
IOD-2Same launch
CONNECTA IOT-9Same orbit class
ELARASAT MMS-1Same orbit class

Where this record sits

All WiseKey International Holding Ltd satellites
Switzerland satellites and space activity
Everything in SSO

It went up on launch 2025-135, alongside everything else on that flight

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

How many satellites are in orbit right now?

Use this data

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//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Oct 6, 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