Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.49897E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T20:53:23+0800
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    1 Object 1

    AOE ID 3616
    NORAD ID 3616
    Object Type ROCKET BODY
    Country
    US US
    VS

    2 Object 2

    AOE ID 11539
    NORAD ID 11539
    Object Type PAYLOAD
    Country
    CIS CIS

    Conjunction Constraints

    Parameter DELTA 1 R/B COSMOS 1131
    Time of Closest Approach 2026-09-13T14:43:59+0000
    Collision Probability (Pc) 3.49897E-6
    Conjunction Distance (km) 1.839 km
    Relative Speed (km/s) 14.235 km/s
    Conjunction Risk Parameters R (Radial): 1.836 | I (In-track): 0.011 | C (Cross-track): 0.091
    Collision Risk Index (CRI) 0.46
    X Position (km) -7331.573 -7329.89
    Position Y (km) -2786.803 -2786.067
    Position Z (km) 265.235 265.158
    Velocity X (km/s) -0.291 0.448
    Velocity Y (km/s) 1.434 -1.926
    Velocity Z (km/s) 6.972 -6.84

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 R/B COSMOS 1131
    Semimajor Axis (a) 7836.767 km 7824.303 km
    Eccentricity (e) 0.001309 0.004549
    Inclination (i) 101.6918° 74.0275°
    RAAN 200.2316° 22.0093°
    Perigee Argument 215.4017° 55.0360°
    Mean Anomaly (M) 318.8055° 116.1515°
    Apogee 1468.886 km 1481.758 km
    Perigee 1448.374 km 1410.574 km
    Orbit Epoch 2026-09-12T14:42:30+0000 2026-09-13T03:12:59+0000

    DELTA 1 R/B & COSMOS 1131 Collision Probability (Pc) Trend

    DELTA 1 R/B & COSMOS 1131 Collision Probability (Pc) TrendNot Available

    DELTA 1 R/B & COSMOS 1131 Miss Distance (Miss Distance) Trend

    DELTA 1 R/B & COSMOS 1131 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 1131Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 1131Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 R/B

    No nearby objects data