Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.983374E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T10:48:32+0800
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    1 Object 1

    Name OAO 2
    AOE ID 3597
    NORAD ID 3597
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 25116
    NORAD ID 25116
    Object Type PAYLOAD
    Country
    ORB ORB

    Conjunction Constraints

    Parameter OAO 2 ORBCOMM FM 9
    Time of Closest Approach 2026-09-11T03:59:31+0000
    Collision Probability (Pc) 9.983374E-7
    Conjunction Distance (km) 2.359 km
    Relative Speed (km/s) 4.685 km/s
    Conjunction Risk Parameters R (Radial): 0.197 | I (In-track): 2.235 | C (Cross-track): 0.732
    Collision Risk Index (CRI) 0.35
    X Position (km) 3809.135 3807.31
    Position Y (km) 4444.715 4446.111
    Position Z (km) 4035.31 4035.841
    Velocity X (km/s) -5.39 -6.303
    Velocity Y (km/s) 5.165 2.528
    Velocity Z (km/s) -0.603 3.159

    Orbital Parameters 国际轨道数据源

    Parameter OAO 2 ORBCOMM FM 9
    Semimajor Axis (a) 7112.361 km 7114.607 km
    Eccentricity (e) 0.000597 0.000472
    Inclination (i) 34.9941° 45.0162°
    RAAN 312.3949° 8.5384°
    Perigee Argument 244.6027° 310.3429°
    Mean Anomaly (M) 115.4046° 49.7009°
    Apogee 738.473 km 739.832 km
    Perigee 729.975 km 733.108 km
    Orbit Epoch 2026-09-10T15:57:06+0000 2026-09-10T14:29:16+0000

    OAO 2 & ORBCOMM FM 9 Collision Probability (Pc) Trend

    OAO 2 & ORBCOMM FM 9 Collision Probability (Pc) TrendNot Available

    OAO 2 & ORBCOMM FM 9 Miss Distance (Miss Distance) Trend

    OAO 2 & ORBCOMM FM 9 Miss Distance (Miss Distance) TrendNot Available

    OAO 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ORBCOMM FM 9Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OAO 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    ORBCOMM FM 9Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OAO 2

    No nearby objects data