Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.83096E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T22:27:42+0800
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    1 Object 1

    AOE ID 25475
    NORAD ID 25475
    Object Type PAYLOAD
    Country
    ORB ORB
    ← VS →

    2 Object 2

    AOE ID 34672
    NORAD ID 34672
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter ORBCOMM FM 21 COSMOS 2251 DEB
    Time of Closest Approach 2026-10-28T09:21:32+0000
    Collision Probability (Pc) 6.83096E-7
    Conjunction Distance (km) 2.845 km
    Relative Speed (km/s) 3.9 km/s
    Conjunction Risk Parameters R (Radial): -2.354 | I (In-track): -1.538 | C (Cross-track): -0.427
    Collision Risk Index (CRI) 0.32
    X Position (km) 955.179 955.726
    Position Y (km) 6874.354 6872.293
    Position Z (km) 1685.605 1683.721
    Velocity X (km/s) -5.552 -2.332
    Velocity Y (km/s) -0.457 -1.407
    Velocity Z (km/s) 4.982 6.965

    Orbital Parameters 国际轨道数据源

    Parameter ORBCOMM FM 21 COSMOS 2251 DEB
    Semimajor Axis (a) 7142.117 km 7147.349 km
    Eccentricity (e) 0.000279 0.002357
    Inclination (i) 45.0064° 74.0323°
    RAAN 74.3075° 80.4915°
    Perigee Argument 186.4202° 77.9216°
    Mean Anomaly (M) 173.6611° 44.3815°
    Apogee 765.973 km 786.056 km
    Perigee 761.987 km 752.368 km
    Orbit Epoch 2026-10-27T01:35:46+0000 2026-10-27T02:06:30+0000

    ORBCOMM FM 21 & COSMOS 2251 DEB Collision Probability (Pc) Trend

    ORBCOMM FM 21 & COSMOS 2251 DEB Collision Probability (Pc) TrendNot Available

    ORBCOMM FM 21 & COSMOS 2251 DEB Miss Distance (Miss Distance) Trend

    ORBCOMM FM 21 & COSMOS 2251 DEB Miss Distance (Miss Distance) TrendNot Available

    ORBCOMM FM 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ORBCOMM FM 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ORBCOMM FM 21

    No nearby objects data