LEMUR 2 ZACHARY, 42845
Orbit data source: Space-Track
LEMUR 2 ZACHARY, 42845 is a payload satellite owned by Spire (US) in SSO that was launched on Fri, 14 Jul 2017 UTC via a SOYUZ-2-1A launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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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42845 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Spire/Glasgow
Mission
Operational Commercial Com/MetRO
Bus & Motor
CUBESAT 3U, Unknown motor
Mass
4 kg wet, 4 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 0.4 m
Radar Cross Section
0.093 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 LEMUR 2 ZACHARY
1 42845U 17042W 26218.46497252 .00035875 00000-0 53760-3 0 9997
2 42845 97.3576 51.3295 0003704 172.9053 187.2254 15.54862218497009Epoch: 2026-08-06T11:09Z
TLE epoch observation values (Epoch: 2026-08-06T11:09:33.625Z)
Latitude
-0.00006°
Longitude
-71.06523°
Altitude
408.184 km
Speed
7.664 km/s
True Right ascension
03h 25m 19s
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
12:57:06
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
401.981 km
Perigee altitude
396.96 km
Semi-major axis
6,777.608 km
Eccentricity
0.00037
Inclination
97.3576°
RAAN
51.3295°
Arg. of periapsis
172.9053°
True anomaly
187.22006°
Mean anomaly
187.2254°
Eccentric anomaly
187.22273°
Mean motion
3.88981 °/min
Orbital period
92.55 mins
BSTAR
0.0005376
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Other satellites on launch #42 in the year 2017 (2017-07-14 UTC)
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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.LEMUR 2 ZACHARY 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-08-07 01:37:37.281Z | 24.863° NE | 2026-08-07 01:39:37.281Z | 97.377° ESE | 40.344° | 2026-08-07 01:42:37.281Z | 181.069° SSW |
| 4 mins | 2026-08-07 13:33:37.281Z | 221.823° SW | 2026-08-07 13:34:37.281Z | 248.469° W | 22.58° | 2026-08-07 13:37:37.281Z | 321.041° NNW |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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