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LEMUR 2 PETERG

NORAD 42841 Payload LEO 2017-042S ● Active
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Altitude (km)
Speed (km/s)
Latitude
Longitude
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🛰️ Orbital Parameters
Perigee
462 km
Apogee
466 km
Inclination
97.4°
Period
93.9 min
Mean Motion
15.33950101 rev/day
TLE Epoch
2026-06-19 06:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude464 km
Orbital Velocity27,492 km/h
Velocity7.64 km/s
Orbital Period94 minutes
Orbits / Day15.34
Eccentricity0.0003
Semi-Major Axis6,835 km
Orbit ClassSun-Synchronous (SSO)
Est. Orbital Lifetime~1–3 years
🚀 Launch & Identity
Country / Operator
🇺🇸 Spire Global Inc. (United States)
Launch Date
2017-07-14
Launch Site
Baikonur, Kazakhstan
Int'l Designator
2017-042S
Object Type
Payload
RCS Size
Medium (0.1–1 m²)
📖 About This Object
LEMUR 2 PETERG is an active satellite operated by Spire Global Inc. (United States), launched on 2017-07-14 from Baikonur, Kazakhstan. It orbits in Low Earth Orbit (LEO) at altitudes between 462 km and 466 km with an inclination of 97.4°. It travels at approximately 27,492 km/h (7.64 km/s), completing one full orbit every 94 minutes — that’s roughly 15.34 orbits per day. Its near-polar, sun-synchronous orbit means it passes over any given point on Earth at approximately the same local solar time, ideal for consistent Earth observation lighting conditions. Its near-circular orbit (eccentricity close to zero) means it maintains a very consistent altitude throughout each revolution. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is ~1–3 years. Orbital Radar tracks LEMUR 2 PETERG in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.
🌍 Orbit Context
LEMUR 2 PETERG orbits at an average altitude of 464 km in a sun-synchronous orbit (SSO), a specialised subset of LEO where the orbital plane precesses to maintain a constant angle relative to the Sun. This provides consistent lighting conditions on every pass — essential for Earth observation, weather monitoring and environmental science. Within ±50 km of LEMUR 2 PETERG’s average altitude, there are currently 7,991 active payloads and 178 tracked debris or rocket body fragments — notable neighbours include STARLINK-1008, STARLINK-1012, STARLINK-1017. This makes it one of the more crowded altitude bands, containing roughly 45.9% of all active satellites. With an inclination of 97.4°, LEMUR 2 PETERG passes over latitudes between 97.4°N and 97.4°S, providing near-global coverage including the polar regions. Polar and near-polar orbits are used for reconnaissance, weather monitoring and Earth-observation missions that need to image every part of the planet. United States operates approximately 12,339 active satellites in total, of which 7,429 share a similar altitude band with LEMUR 2 PETERG.
🔗 Spire Global Constellation

This satellite is part of Spire Global's constellation of 3U CubeSats collecting weather, maritime and aviation data through radio occultation, AIS and ADS-B payloads. Spire operates over 100 multi-purpose nanosatellites in LEO, providing atmospheric profiles used by weather agencies worldwide, global ship tracking and flight tracking services.

❓ Frequently Asked Questions
LEMUR 2 PETERG is in a sun-synchronous orbit (SSO), a specialised form of LEO at approximately 464 km altitude. Its 97.4° inclination causes the orbital plane to precess at exactly the rate of the Earth’s revolution around the Sun, so the satellite crosses each latitude at a consistent local solar time. It completes one orbit every 94 minutes, travelling at 27,492 km/h.
LEMUR 2 PETERG is operated by Spire Global Inc. (United States). It is catalogued by the U.S. Space Surveillance Network under NORAD ID 42841. You can track LEMUR 2 PETERG in real time on Orbital Radar’s live tracker or browse all operators in the operator directory.
LEMUR 2 PETERG was launched on 2017-07-14 from Baikonur, Kazakhstan, the world’s first and largest operational space launch facility, located in Kazakhstan. At its current altitude, the estimated remaining orbital lifetime is: ~1–3 years. View the full satellite launch log.
Yes — Orbital Radar tracks LEMUR 2 PETERG (NORAD ID 42841) using the latest TLE (two-line element set) data from Space-Track and CelesTrak. Open the live tracker to see its current position, altitude, speed and orbital path updated in real time. You can also browse the satellite directory to find other tracked objects.
LEMUR 2 PETERG travels at approximately 27,492 km/h (17,083 mph) — roughly 7.64 km/s. It completes 15.34 orbits per day, meaning the crew or instruments aboard (if any) would experience approximately 31 sunrises and sunsets every 24 hours.