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OTTER PUP 2, 64537

Orbit data source: Space-Track

OTTER PUP 2, 64537 is a payload satellite owned by Starfish Space (US) in SSO that was launched on Mon, 23 Jun 2025 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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<iframe src="https://www.satcat.com/sats-embedded/64537?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/64537?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

64537, 2025-135K

Orbit

SSO

Country

Related business

Starfish Space (US)

Manufacturer

Starfish Space

Mission

Operational Commercial Technology

Bus & Motor

OTTER, EP

Mass

40 kg wet, 39 kg dry

Launch date (UTC)

2025-06-23 (1 year ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 0.6 m

Radar Cross Section

0.519 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 1 day ago

TLE from 1 day ago

0 OTTER PUP 2
1 64537U 25135K   26259.08810925  .00000317  00000-0  16267-4 0  9995
2 64537  97.4811  14.2363 0002584 188.6326 171.4867 15.23544930 68711

Epoch: 2026-09-16T02:06Z

TLE epoch observation values (Epoch: 2026-09-16T02:06:52.639Z)

Latitude

0.00001°

Longitude

-12.52776°

Altitude

500.008 km

Speed

7.613 km/s

True Right ascension

00h 56m 56s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

04:44:26

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

493.898 km

Perigee altitude

490.347 km

Semi-major axis

6,870.26 km

Eccentricity

0.00026

Inclination

97.4811°

RAAN

14.2363°

Arg. of periapsis

188.6326°

True anomaly

171.49108°

Mean anomaly

171.4867°

Eccentric anomaly

171.48889°

Mean motion

3.81139 °/min

Orbital period

94.45 mins

BSTAR

0.000016267

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Other satellites on launch #135 in the year 2025 (2025-06-23 UTC)

W-SERIES 4 DEB, 69094 (Decayed)

IRIDE-MS2-HEO-8, 64587

LEMUR-2-LUCILLE-ROSE, 65403

IRIDE-MS2-HEO-2, 64569

GOOD ANCESTOR KILAKILA, 64528

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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OTTER PUP 2 Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
4 mins	2026-09-17 21:15:10.714Z	330.191° NNW	2026-09-17 21:17:10.714Z	271.684° WNW	29.416°	2026-09-17 21:19:10.714Z	231.922° WSW
5 mins	2026-09-18 07:51:10.714Z	168.445° S	2026-09-18 07:53:10.714Z	333.375° NNW	81.829°	2026-09-18 07:56:10.714Z	347.406° N

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out OTTER PUP 2, 64537 on other resources

View OTTER PUP 2, 64537 on NASA - NSSDCA Website

View OTTER PUP 2, 64537 on Heavens-Above

View OTTER PUP 2, 64537 on Keep Track

View OTTER PUP 2, 64537 on Celestrak

View OTTER PUP 2, 64537 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

OTTER PUP 2, 64537

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-09-16T02:06:52.639Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #135 in the year 2025 (2025-06-23 UTC)

OTTER PUP 2 Visibility forecast

Co-orbital & Co-planar RSOs

Check out OTTER PUP 2, 64537 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago