Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    3.461605E-4
    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 34481
    NORAD ID 34481
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter ORBCOMM FM 21 COSMOS 2251 DEB
    Time of Closest Approach 2026-10-29T01:40:39+0000
    Collision Probability (Pc) 3.461605E-4
    Conjunction Distance (km) 0.357 km
    Relative Speed (km/s) 11.373 km/s
    Conjunction Risk Parameters R (Radial): -0.354 | I (In-track): -0.022 | C (Cross-track): 0.028
    Collision Risk Index (CRI) 0.86
    X Position (km) 5492.729 5492.474
    Position Y (km) 1804.137 1804.019
    Position Z (km) -4200.097 -4199.878
    Velocity X (km/s) -0.01 -4.754
    Velocity Y (km/s) 6.865 1.122
    Velocity Z (km/s) 2.935 -5.659

    Orbital Parameters 国际轨道数据源

    Parameter ORBCOMM FM 21 COSMOS 2251 DEB
    Semimajor Axis (a) 7142.117 km 7158.724 km
    Eccentricity (e) 0.000279 0.006962
    Inclination (i) 45.0064° 73.9786°
    RAAN 74.3075° 189.6120°
    Perigee Argument 186.4202° 289.5011°
    Mean Anomaly (M) 173.6611° 226.4365°
    Apogee 765.973 km 830.425 km
    Perigee 761.987 km 730.749 km
    Orbit Epoch 2026-10-27T01:35:46+0000 2026-10-27T04:09:36+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