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CALSPHERE 1 — Live Satellite Tracking (NORAD 900)
Track CALSPHERE 1 (NORAD catalog number 900) live on the WatchSat interactive 3D globe above. Its position is propagated in real time from the latest CelesTrak two-line element set using the SGP4/SDP4 orbital model — the same math professional trackers run. It is object C of 1964's 63rd orbital launch (COSPAR designation 1964-063C). It went up together with 1 other satellite from that launch still in the active catalog.
Moving at about 7.38 km/s, CALSPHERE 1 flies in low Earth orbit at an altitude of roughly 965 × 1,001 km, completing one revolution every 104.6 minutes — about 13.8 trips around Earth per day. The orbit is essentially circular (eccentricity 0.0024). Inclined 90.2° — nearly pole-to-pole — its ground track sweeps essentially every latitude. Its orbital plane crosses the equator northbound at right ascension 74.7°.
Orbital elements
| Orbit regime | low Earth orbit (LEO) |
|---|---|
| Perigee × apogee altitude | ~965 km × 1,001 km |
| Inclination | 90.22° |
| Orbital period | 104.6 min (13.77 rev/day) |
| Eccentricity | 0.00245 |
| Element set epoch | 2026-10-21 |
| COSPAR designation | 1964-063C |
| NORAD catalog number | 900 |
This page's orbital elements come from the CelesTrak catalog of 2026-10-23. The live 3D view above fetches its own current CelesTrak data when the page opens, through an edge cache that refreshes roughly every 30 minutes.
About the Other Active Satellites group
CALSPHERE 1 is one of 4,802 active satellites in WatchSat's general catalog — the broad population of Earth-observation, communications, science, amateur-radio and technology spacecraft outside the giant broadband constellations. Browse all other active satellites live in 3D.
Can you see CALSPHERE 1 from the ground?
Sometimes. Like most low-Earth-orbit spacecraft, CALSPHERE 1 is visible only around dawn and dusk, when your sky is dark but the satellite is still sunlit — and whether you can spot it depends on its size and reflectivity. See the “When can I see it?” panel in the live view for when it is above your horizon and sunlit.
Related satellites
Nearest catalog neighbors of CALSPHERE 1 in the Other Active Satellites group — usually craft from the same or adjacent launches:
- CALSPHERE 2 (NORAD 902)
- LCS 1 (NORAD 1361)
- TEMPSAT 1 (NORAD 1512)
- CALSPHERE 4A (NORAD 1520)
- OPS 5712 (P/L 160) (NORAD 2826)
- LES-5 (NORAD 2866)
Browse the Other Active Satellites directory or the full satellite directory.
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