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
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 IMPULSE-3 MIRA
1 66687U 25276X 26147.19023121 .00011476 00000-0 52759-3 0 9994
2 66687 97.4266 221.1598 0005597 209.0234 151.0691 15.20505636 27233Epoch: 2026-05-27T04:33Z
TLE epoch observation values (Epoch: 2026-05-27T04:33:55.976Z)
Latitude
-0.00002°
Longitude
-92.07631°
Altitude
510.777 km
Speed
7.607 km/s
True Right ascension
14h 44m 38s
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
04:47:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
505.131 km
Perigee altitude
497.43 km
Semi-major axis
6,879.417 km
Eccentricity
0.00056
Inclination
97.4266°
RAAN
221.1598°
Arg. of periapsis
209.0234°
True anomaly
151.10011°
Mean anomaly
151.0691°
Eccentric anomaly
151.08461°
Mean motion
3.80378 °/min
Orbital period
94.64 mins
BSTAR
0.00052759
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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 | 2026-05-28 04:23:46.784Z | 129.703° SE | 2026-05-28 04:26:46.784Z | 61.401° ENE | 26.797° | 2026-05-28 04:28:46.784Z | 18.097° NNE |
| 5 mins | 2026-05-28 17:28:46.784Z | 39.92° NE | 2026-05-28 17:30:46.784Z | 115.73° SE | 35.158° | 2026-05-28 17:33:46.784Z | 172.814° S |
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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