Showing default

PULSAR-0, 64541

Orbit data source: Space-Track

PULSAR-0, 64541 is an American payload satellite 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/64541?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/64541?theme=dark&initialShowStats=false

Optional secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

64541, 2025-135P

Orbit

SSO

Country

Related business

Xona Space Systems (US)

Manufacturer

Aerospacelab

Mission

Operational Commercial Navigation

Bus & Motor

PULSAR, AOCS

Mass

149 kg wet, 144 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, 1.0 m

Radar Cross Section

0.963 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 11 hours ago

TLE from 11 hours ago

0 PULSAR-0
1 64541U 25135P   26289.89699422  .00002936  00000-0  13608-3 0  9993
2 64541  97.4809  43.5183 0004434 110.8510 249.3201 15.20862858 73325

Epoch: 2026-10-16T21:31Z

TLE epoch observation values (Epoch: 2026-10-16T21:31:40.300Z)

Latitude

0.00002°

Longitude

55.18896°

Altitude

507.405 km

Speed

7.61 km/s

True Right ascension

02h 54m 04s

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

03:09:59

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

503.254 km

Perigee altitude

497.155 km

Semi-major axis

6,878.342 km

Eccentricity

0.00044

Inclination

97.4809°

RAAN

43.5183°

Arg. of periapsis

110.851°

True anomaly

249.27257°

Mean anomaly

249.3201°

Eccentric anomaly

249.29634°

Mean motion

3.80468 °/min

Orbital period

94.62 mins

BSTAR

0.00013608

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

W-SERIES 4 DEB, 69093 (Decayed)

LEMUR 2 KARENDARRELL, 64841

LEMUR-2-LUCILLE-ROSE, 65403

W-SERIES 4, 64543 (Decayed)

LEMUR 2 HUBBLE-5, 64840

MUSAT3, 64573

Did you know?

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

Click here to try in Sandbox

PULSAR-0 Visibility forecast

Loading observer location...
Set Observer location

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	2026-10-17 08:43:01.456Z	230.918° WSW	2026-10-17 08:45:01.456Z	266.41° W	16.323°	2026-10-17 08:47:01.456Z	301.902° NW
5 mins	2026-10-17 20:13:01.456Z	38.19° NE	2026-10-17 20:15:01.456Z	98.867° ESE	42.784°	2026-10-17 20:18:01.456Z	168.807° S

Items per page:

1–2 of 2 items

of 1 page

Co-orbital & Co-planar RSOs

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

Please sign in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

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

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

Check out PULSAR-0, 64541 on other resources

View PULSAR-0, 64541 on NASA - NSSDCA Website

View PULSAR-0, 64541 on Heavens-Above

View PULSAR-0, 64541 on Keep Track

View PULSAR-0, 64541 on Celestrak

View PULSAR-0, 64541 on Gunter's Space Page

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

PULSAR-0, 64541

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2026-10-16T21:31:40.300Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

PULSAR-0 Visibility forecast

Co-orbital & Co-planar RSOs

Check out PULSAR-0, 64541 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 hours ago