OTTER PUP 2
NORAD 64537
Payload
LEO
2025-135K
● Active
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LEO · NORAD 64537
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Altitude (km)
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Speed (km/s)
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Latitude
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Longitude
🛰️ Orbital Parameters
Perigee
493 km
Apogee
497 km
Inclination
97.5°
Period
94.5 min
Mean Motion
15.23550172 rev/day
TLE Epoch
2026-09-17 06:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude495 km
Orbital Velocity27,430 km/h
Velocity7.62 km/s
Orbital Period95 minutes
Orbits / Day15.24
Eccentricity0.0003
Semi-Major Axis6,866 km
Orbit ClassSun-Synchronous (SSO)
Est. Orbital Lifetime~1–3 years
🚀 Launch & Identity
Country / Operator
🇺🇸 Starfish Space (United States)
Launch Date
2025-06-23
Launch Site
Vandenberg Space Force Base, United States
Int'l Designator
2025-135K
Object Type
Payload
RCS Size
Medium (0.1–1 m²)
📖 About This Object
OTTER PUP 2 is an active satellite operated by Starfish Space (United States), launched on 2025-06-23 from Vandenberg Space Force Base, United States on the Transporter-14 launch. As a relatively recent addition to the catalogue, its orbital elements are well-characterised. It orbits in Low Earth Orbit (LEO) at altitudes between 493 km and 497 km with an inclination of 97.5°. It travels at approximately 27,430 km/h (7.62 km/s), completing one full orbit every 95 minutes — that’s roughly 15.24 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 OTTER PUP 2 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.
🌍 Orbit Context
OTTER PUP 2 orbits at an average altitude of 495 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 OTTER PUP 2’s average altitude, there are currently 10,260 active payloads and 216 tracked debris or rocket body fragments — notable neighbours include STARLINK-1017, STARLINK-1039, STARLINK-1047. This makes it one of the more crowded altitude bands, containing roughly 54.9% of all active satellites. With an inclination of 97.5°, OTTER PUP 2 passes over latitudes between 97.5°N and 97.5°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 13,204 active satellites in total, of which 9,641 share a similar altitude band with OTTER PUP 2.
❓ Frequently Asked Questions
OTTER PUP 2 is in a sun-synchronous orbit (SSO), a specialised form of LEO at approximately 495 km altitude. Its 97.5° 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 95 minutes, travelling at 27,430 km/h.
OTTER PUP 2 is operated by Starfish Space (United States). It is catalogued by the U.S. Space Surveillance Network under NORAD ID 64537. You can track OTTER PUP 2 in real time on Orbital Radar’s live tracker or browse all operators in the operator directory.
OTTER PUP 2 was launched on 2025-06-23 from Vandenberg Space Force Base, United States, primarily used for polar and sun-synchronous orbit launches due to its southward ocean trajectory from California. At its current altitude, the estimated remaining orbital lifetime is: ~1–3 years. View the full satellite launch log.
Yes — Orbital Radar tracks OTTER PUP 2 (NORAD ID 64537) 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.
OTTER PUP 2 travels at approximately 27,430 km/h (17,044 mph) — roughly 7.62 km/s. It completes 15.24 orbits per day, meaning the crew or instruments aboard (if any) would experience approximately 30 sunrises and sunsets every 24 hours.