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BULGARIASAT-1, 42801

Orbit data source: Space-Track

BULGARIASAT-1, 42801 is a payload satellite owned by Bulgaria Sat (BG) in GEO that was launched on Fri, 23 Jun 2017 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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.

Not visible in the next 10 days

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/42801?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/42801?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

42801, 2017-038A

Orbit

GEO

Country

BG / BGR

Related business

Bulsatcom (BG)

Manufacturer

SS/Loral (MDA)

Mission

Operational Commercial Communications

Bus & Motor

SSL-1300, R-4D-15-300

Mass

~4,000 kg wet, ~3,000 kg dry

Launch date (UTC)

2017-06-23 (8 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 15.5 m

Radar Cross Section

40.765 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 16 hours ago

TLE from 16 hours ago

0 BULGARIASAT-1
1 42801U 17038A   25303.25634700  .00000021  00000-0  00000-0 0  9997
2 42801   0.0329  95.6312 0002888 132.8045 264.5974  1.00272898 30531

Epoch: 2025-10-30T06:09Z

TLE epoch observation values (Epoch: 2025-10-30T06:09:08.380Z)

Latitude

-0.01116°

Longitude

1.86162°

Altitude

35,786.917 km

Speed

3.075 km/s

True Right ascension

08h 51m 51s

True Declination

0° 00' 40"

Sunlit

Object was in daylight 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

18:00:02

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,799.531 km

Perigee altitude

35,775.176 km

Semi-major axis

42,165.49 km

Eccentricity

0.00029

Inclination

0.0329°

RAAN

95.6312°

Arg. of periapsis

132.8045°

True anomaly

264.56445°

Mean anomaly

264.5974°

Eccentric anomaly

264.58093°

Mean motion

0.25067 °/min

Orbital period

1,436.13 mins

BSTAR

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Other satellites on launch #38 in the year 2017 (2017-06-23 UTC)

FALCON 9 R/B, 42802 (Decayed)

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BULGARIASAT-1 Visibility

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BULGARIASAT-1 is likely not visible in the next few days.

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42801 neighbors

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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 BULGARIASAT-1, 42801 on other resources

View BULGARIASAT-1, 42801 on NASA - NSSDCA Website

View BULGARIASAT-1, 42801 on Heavens-Above

View BULGARIASAT-1, 42801 on Keep Track

View BULGARIASAT-1, 42801 on Celestrak

View BULGARIASAT-1, 42801 on Gunter's Space Page

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

BULGARIASAT-1, 42801

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2025-10-30T06:09:08.380Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #38 in the year 2017 (2017-06-23 UTC)

BULGARIASAT-1 Visibility

42801 neighbors

Co-orbital & Co-planar RSOs

Check out BULGARIASAT-1, 42801 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 16 hours ago