NEMO-HD, 46277
Orbit data source: Space-Track
NEMO-HD, 46277 is a payload satellite owned by Space-SI (SI) in SSO that was launched on Thu, 03 Sep 2020 UTC via a VEGA launch vehicle from the French Guiana (FRGUI). 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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46277 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
SI / SVNRelated business
Manufacturer
UTIAS-SFL
Mission
Operational Amateur Imaging
Bus & Motor
NEMO-HD, Unknown motor
Mass
65 kg wet, 65 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Oct Cyl, Unknown HBR
Radar Cross Section
0.165 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 5 hours ago
TLE from 5 hours ago
0 NEMO-HD
1 46277U 20061F 25312.18734980 .00015176 00000-0 39092-3 0 9994
2 46277 97.2256 11.7417 0002683 104.3135 255.8409 15.39300508287921Epoch: 2025-11-08T04:29Z
TLE epoch observation values (Epoch: 2025-11-08T04:29:47.022Z)
Latitude
-0.00005°
Longitude
-103.32478°
Altitude
451.747 km
Speed
7.641 km/s
True Right ascension
00h 46m 58s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
05:31:48
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
446.94 km
Perigee altitude
443.278 km
Semi-major axis
6,823.246 km
Eccentricity
0.00027
Inclination
97.2256°
RAAN
11.7417°
Arg. of periapsis
104.3135°
True anomaly
255.81109°
Mean anomaly
255.8409°
Eccentric anomaly
255.826°
Mean motion
3.85085 °/min
Orbital period
93.49 mins
BSTAR
0.00039092
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Other satellites on launch #61 in the year 2020 (2020-09-03 UTC)
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.NEMO-HD 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 | 2025-11-08 17:32:59.798Z | 330.994° NNW | 2025-11-08 17:34:59.798Z | 270.86° WNW | 24.803° | 2025-11-08 17:36:59.798Z | 230.471° WSW |
| 4 mins | 2025-11-09 04:02:59.798Z | 151.026° SSE | 2025-11-09 04:03:59.798Z | 125.574° SE | 40.125° | 2025-11-09 04:06:59.798Z | 355.749° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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