Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.224618E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T15:18:56+0800
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    1 Object 1

    AOE ID 2980
    NORAD ID 2980
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 41790
    NORAD ID 41790
    Object Type PAYLOAD
    Country
    IN IN

    Conjunction Constraints

    Parameter OPS 1264 (DMSP 4A F4) SCATSAT 1
    Time of Closest Approach 2026-10-30T16:19:42+0000
    Collision Probability (Pc) 1.224618E-6
    Conjunction Distance (km) 1.957 km
    Relative Speed (km/s) 3.358 km/s
    Conjunction Risk Parameters R (Radial): 0.1 | I (In-track): 1.902 | C (Cross-track): -0.449
    Collision Risk Index (CRI) 0.37
    X Position (km) 673.37 671.564
    Position Y (km) -891.674 -892.405
    Position Z (km) 6906.705 6906.887
    Velocity X (km/s) -6.222 -7.43
    Velocity Y (km/s) -4.321 -1.219
    Velocity Z (km/s) 0.085 0.522

    Orbital Parameters 国际轨道数据源

    Parameter OPS 1264 (DMSP 4A F4) SCATSAT 1
    Semimajor Axis (a) 7061.303 km 7008.153 km
    Eccentricity (e) 0.009379 0.005459
    Inclination (i) 99.1759° 98.1042°
    RAAN 33.5930° 7.5055°
    Perigee Argument 62.2552° 173.7960°
    Mean Anomaly (M) 298.8120° 186.3939°
    Apogee 749.396 km 668.277 km
    Perigee 616.936 km 591.755 km
    Orbit Epoch 2026-10-29T16:56:57+0000 2026-10-29T10:43:45+0000

    OPS 1264 (DMSP 4A F4) & SCATSAT 1 Collision Probability (Pc) Trend

    OPS 1264 (DMSP 4A F4) & SCATSAT 1 Collision Probability (Pc) TrendNot Available

    OPS 1264 (DMSP 4A F4) & SCATSAT 1 Miss Distance (Miss Distance) Trend

    OPS 1264 (DMSP 4A F4) & SCATSAT 1 Miss Distance (Miss Distance) TrendNot Available

    OPS 1264 (DMSP 4A F4)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SCATSAT 1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OPS 1264 (DMSP 4A F4)Collision Probability Trend

    Object 1 Probability TrendNot Available

    SCATSAT 1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 1264 (DMSP 4A F4)

    No nearby objects data