IMPULSE-3 MIRA, 66687
Orbit data source: Space-Track
IMPULSE-3 MIRA, 66687 is an American payload satellite in SSO that was launched on Fri, 28 Nov 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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66687 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
None
Manufacturer
Unknown
Mission
Operational Civil Communications
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 0.1 m
Radar Cross Section
0.035 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 IMPULSE-3 MIRA
1 66687U 25276X 26192.77823958 .00008316 00000-0 37018-3 0 9994
2 66687 97.4259 266.1134 0005209 80.0180 280.1644 15.21705366 34162Epoch: 2026-07-11T18:40Z
TLE epoch observation values (Epoch: 2026-07-11T18:40:39.899Z)
Latitude
-0°
Longitude
56.26058°
Altitude
503.158 km
Speed
7.613 km/s
True Right ascension
17h 44m 27s
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
15:42:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
501.242 km
Perigee altitude
494.079 km
Semi-major axis
6,875.798 km
Eccentricity
0.00052
Inclination
97.4259°
RAAN
266.1134°
Arg. of periapsis
80.018°
True anomaly
280.10564°
Mean anomaly
280.1644°
Eccentric anomaly
280.13502°
Mean motion
3.80679 °/min
Orbital period
94.57 mins
BSTAR
0.00037018
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Other satellites on launch #276 in the year 2025 (2025-11-28 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.IMPULSE-3 MIRA 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 | 2026-07-12 04:17:12.028Z | 124.759° SE | 2026-07-12 04:20:12.028Z | 63.565° ENE | 22.987° | 2026-07-12 04:22:12.028Z | 22.405° NNE |
| 4 mins | 2026-07-12 05:52:12.028Z | 235.882° WSW | 2026-07-12 05:53:12.028Z | 255.23° W | 17.003° | 2026-07-12 05:56:12.028Z | 310.366° NW |
| 5 mins | 2026-07-12 17:21:12.028Z | 41.474° NE | 2026-07-12 17:23:12.028Z | 95.419° ESE | 30.712° | 2026-07-12 17:26:12.028Z | 163.572° S |
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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