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PADRE, 64559

Orbit data source: Space-Track

PADRE, 64559 is a Bulgarian 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.

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<iframe src="https://www.satcat.com/sats-embedded/64559?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/64559?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

64559, 2025-135AH

Orbit

SSO

Country

BG / BGR

Related business

University of California Berkeley (US)

Manufacturer

Endurosat

Mission

Operational Amateur Astronomy

Bus & Motor

CUBESAT 12U, Unknown motor

Mass

~20 kg wet, ~20 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 + 4 Pan, 0.3 m

Radar Cross Section

0.127 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 13 hours ago

TLE from 13 hours ago

0 PADRE
1 64559U 25135AH  26171.29621242  .00000964  00000-0  99354-4 0  9993
2 64559  97.7727 284.9241 0000732 204.0371 156.0814 14.92496895 54314

Epoch: 2026-06-20T07:06Z

TLE epoch observation values (Epoch: 2026-06-20T07:06:32.753Z)

Latitude

-0.00001°

Longitude

-90.22524°

Altitude

593.662 km

Speed

7.563 km/s

True Right ascension

18h 59m 41s

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

07:22:56

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

587.681 km

Perigee altitude

586.662 km

Semi-major axis

6,965.309 km

Eccentricity

0.00007

Inclination

97.7727°

RAAN

284.9241°

Arg. of periapsis

204.0371°

True anomaly

156.0848°

Mean anomaly

156.0814°

Eccentric anomaly

156.0831°

Mean motion

3.73364 °/min

Orbital period

96.42 mins

BSTAR

0.000099354

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

LEMUR 2 KARENDARRELL, 64841

PULSAR-0, 64541

IRIDE-MS2-HEO-4, 64582

IRIDE-MS2-HEO-5, 64571

IRIDE-MS2-HEO-6, 64576

MUSAT3, 64573

LEMUR-2-LUCILLE-ROSE, 65403

FOSSASAT2E21, 64536

IOD2_STARTICAL, 64538

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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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PADRE 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.
8 mins	2026-06-20 20:32:10.699Z	10.205° NNE	2026-06-20 20:36:10.699Z	304.523° NW	44.614°	2026-06-20 20:40:10.699Z	197.051° SSW
6 mins	2026-06-21 07:23:10.699Z	148.373° SSE	2026-06-21 07:25:10.699Z	108.204° ESE	39.629°	2026-06-21 07:29:10.699Z	356.55° 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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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

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Check out PADRE, 64559 on other resources

View PADRE, 64559 on NASA - NSSDCA Website

View PADRE, 64559 on Heavens-Above

View PADRE, 64559 on Keep Track

View PADRE, 64559 on Celestrak

View PADRE, 64559 on Gunter's Space Page

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

PADRE, 64559

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-06-20T07:06:32.753Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

PADRE Visibility forecast

Co-orbital & Co-planar RSOs

Check out PADRE, 64559 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 13 hours ago