SCD 1
NORAD 22490
Payload
LEO
1993-009B
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LEO · NORAD 22490
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🛰️ Orbital Parameters
Perigee
709 km
Apogee
768 km
Inclination
25.0°
Period
99.6 min
Mean Motion
14.46072573 rev/day
TLE Epoch
2026-03-17 05:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude739 km
Orbital Velocity26,956 km/h
Velocity7.49 km/s
Orbital Period100 minutes
Orbits / Day14.46
Eccentricity0.0041
Semi-Major Axis7,110 km
Est. Orbital Lifetime~25–100 years
🚀 Launch & Identity
Country / Operator
🇧🇷 Brazil
Launch Date
1993-02-09
Launch Site
Cape Canaveral, Florida
Int'l Designator
1993-009B
Object Type
Payload
RCS Size
Medium (0.1–1 m²)
🔗 Constellation / Groups
resource
📖 About This Object
SCD 1 is an active satellite operated by Brazil, launched on 1993-02-09 from Cape Canaveral, Florida. With over 33 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Low Earth Orbit (LEO) at altitudes between 709 km and 768 km with an inclination of 25.0°. It travels at approximately 26,956 km/h (7.49 km/s), completing one full orbit every 100 minutes — that’s roughly 14.46 orbits per day. It is part of the Resource constellation group. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is ~25–100 years. Orbital Radar tracks SCD 1 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.
🌍 Orbit Context
SCD 1 occupies the mid-LEO band between 600 and 1,000 km, where atmospheric drag is minimal but radiation exposure remains low. This altitude range balances orbital longevity (decades to centuries) with reasonable ground coverage, making it popular for remote sensing constellations, scientific instruments and weather satellites. Debris concerns are significant here because objects persist far longer than in lower orbits.
❓ Frequently Asked Questions
SCD 1 orbits in Low Earth Orbit (LEO) at altitudes between 709 km (perigee) and 768 km (apogee), with an average altitude of approximately 739 km. It completes one orbit every 100 minutes, travelling at approximately 26,956 km/h (16,750 mph).
SCD 1 is operated by Brazil. It is catalogued by the U.S. Space Surveillance Network under NORAD ID 22490. You can track SCD 1 in real time on Orbital Radar’s live tracker.
SCD 1 was launched on 1993-02-09 from Cape Canaveral, Florida, one of the busiest launch facilities in the world, operated by NASA and the U.S. Space Force on Florida’s Atlantic coast. At its current altitude, the estimated remaining orbital lifetime is: ~25–100 years.
Yes — Orbital Radar tracks SCD 1 (NORAD ID 22490) 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.
SCD 1 travels at approximately 26,956 km/h (16,750 mph) — roughly 7.49 km/s. It completes 14.46 orbits per day, meaning the crew or instruments aboard (if any) would experience approximately 29 sunrises and sunsets every 24 hours.
SCD 1 is a member of the Resource constellation. Satellites in this group work together to provide coordinated coverage, typically in similar orbital planes at comparable altitudes. You can view all Resource satellites on Orbital Radar’s live tracker.