Home›Maneuver Tracker›Close Approaches›MISR-D-1 ⟷ OBJECT B
HighProximity
United StatesMISR-D-1NORAD 69908 · launched Jul 2026Payload
2.03kmPredicted miss distance
TBDOBJECT BNORAD 100610 · launched Sep 2026Payload
Final forecastFinal forecast, made minutes before the pass.
After the passBest estimate, from the orbit data published nearest its time: 1.95 km at 22 Oct 07:27 UTC.
Closest approach22 Oct 202607:27 UTC
Relative speed14.96 km/sat the closest approach
Altitude595 kmlow Earth orbit
Last confirmed22 Oct07:24 UTC · final forecast
Track MISR-D-1Track OBJECT BAll approaches
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US MISR-D-1 and TBD OBJECT B were predicted to reach a closest approach of 2.03 km at 2026-10-22 07:27 UTC, at a relative speed of 14.96 km/s. Final forecast, made minutes before the pass. Best estimate after the pass, from the orbit data published nearest its time: 1.95 km at 22 Oct 07:27 UTC. Miss distance and time of closest approach are computed by propagating the latest published orbital elements for both objects, and each pass is re-checked every 20 minutes as new element sets are published. See the Satellite Maneuver Tracker for the live picture and space situational awareness for context.

Why it mattersBoth objects are catalogued as payloads. Screening continues as new element sets arrive; operators act on their own conjunction data.

The Two Objects

Dossiers from the satellite directory
MISR-D-1Payload
NORAD 69908
CountryUS
Launched2026-07-07
OrbitLEO · 588 × 597 km
COSPAR2026-156AR
Maneuver capableUnknown
Profile →Globe →
OBJECT BPayload
NORAD 100610
CountryTBD
Launched2026-09-05
OrbitLEO · 518 × 600 km
COSPAR2026-203B
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 595 KMISS 420Starlink 550

At 595 km this pass sits in low Earth orbit. Objects here stay up for decades: there is too little atmospheric drag to clean the band naturally. Why crowded bands matter →

History Between This Pair

1 predicted pass under 10 km
Pair history · MISR-D-1 ⟷ OBJECT B
2026-10-22 07:272.03 km Final forecast14.96 km/s595 kmShown above

Repeat encounters are common for objects in near-intersecting orbital planes. Each pass is re-screened as fresh element sets arrive; "Final forecast" means the screening still predicted it within 45 minutes of its time, "Not re-confirmed" means later screening stopped finding it.

Forecast Record

Every figure published for the pass shown above, newest first. Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.
Computed · figure · predicted time · orbit data · by
24 Oct 07:49 UTC1.95 km Best estimate22 Oct 07:27 UTC22 Oct 05:57 UTCBest estimate
22 Oct 02:04 UTC2.03 km Forecast22 Oct 07:27 UTC21 Oct 12:52 UTCRe-check
21 Oct 13:30 UTC1.94 km Forecast22 Oct 07:27 UTC21 Oct 04:49 UTCRe-check
21 Oct 13:11 UTC2.90 km Forecast22 Oct 07:27 UTC21 Oct 04:49 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
327 m10-23 14:20 UTC
MISR-D-1GRUS-3C
351 m10-23 13:33 UTC
MISR-D-1GRUS-3C
1.87 km10-23 15:05 UTC
MISR-D-1GRUS-3C

How These Numbers Are Computed

Miss distance and TCA come from propagating the latest published orbital elements for both objects and searching for the minimum separation over the screening window. Element sets carry kilometre-scale uncertainty, so figures here describe a close pass, not a collision prediction; a change in either object's published elements re-computes the pass automatically. What is a conjunction? → How conjunction assessment works →

Cite this encounter: Orbital Radar — “MISR-D-1 ⟷ OBJECT B: 2.03 km predicted close approach”, https://orbitalradar.com/conjunction/100610-69908 (accessed 2026-10-24).