Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    9.89329E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T06:42:25+0800
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    1 Object 1

    AOE ID 35837
    NORAD ID 35837
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 69114
    NORAD ID 69114
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter COSMOS 2251 DEB QIANFAN-155
    Time of Closest Approach 2026-09-05T08:37:34+0000
    Collision Probability (Pc) 9.89329E-6
    Conjunction Distance (km) 1.277 km
    Relative Speed (km/s) 11.804 km/s
    Conjunction Risk Parameters R (Radial): -0.776 | I (In-track): -0.605 | C (Cross-track): -0.812
    Collision Risk Index (CRI) 0.55
    X Position (km) 2204.848 2204.28
    Position Y (km) 425.243 424.257
    Position Z (km) -7110.296 -7109.717
    Velocity X (km/s) -3.851 6.748
    Velocity Y (km/s) 6.15 1.723
    Velocity Z (km/s) -0.517 2.196

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB QIANFAN-155
    Semimajor Axis (a) 7393.418 km 7446.642 km
    Eccentricity (e) 0.041271 0.000217
    Inclination (i) 73.7248° 89.0174°
    RAAN 124.8879° 14.0897°
    Perigee Argument 8.1074° 108.5888°
    Mean Anomaly (M) 102.0612° 251.5499°
    Apogee 1320.412 km 1070.123 km
    Perigee 710.150 km 1066.887 km
    Orbit Epoch 2026-09-04T09:00:01+0000 2026-09-04T13:25:56+0000

    COSMOS 2251 DEB & QIANFAN-155 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & QIANFAN-155 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & QIANFAN-155 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & QIANFAN-155 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-155Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-155Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data