Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.759902E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T10:09:19+0800
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    1 Object 1

    AOE ID 41456
    NORAD ID 41456
    Object Type PAYLOAD
    Country
    ESA ESA
    ← VS →

    2 Object 2

    AOE ID 63261
    NORAD ID 63261
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SENTINEL 1B LEMUR 2 EMERSONROSE
    Time of Closest Approach 2026-10-21T17:16:04+0000
    Collision Probability (Pc) 1.759902E-6
    Conjunction Distance (km) 2.507 km
    Relative Speed (km/s) 14.976 km/s
    Conjunction Risk Parameters R (Radial): 2.359 | I (In-track): 0.124 | C (Cross-track): -0.837
    Collision Risk Index (CRI) 0.4
    X Position (km) 6491.643 6489.393
    Position Y (km) 381.207 381.923
    Position Z (km) -2465.702 -2464.863
    Velocity X (km/s) 2.699 -2.585
    Velocity Y (km/s) -0.98 -1.234
    Velocity Z (km/s) 7.003 -7.007

    Orbital Parameters 国际轨道数据源

    Parameter SENTINEL 1B LEMUR 2 EMERSONROSE
    Semimajor Axis (a) 6946.484 km 6945.502 km
    Eccentricity (e) 0.001635 0.000322
    Inclination (i) 98.0766° 97.6716°
    RAAN 359.0331° 184.7490°
    Perigee Argument 87.6408° 336.6372°
    Mean Anomaly (M) 272.6685° 23.4705°
    Apogee 579.703 km 569.605 km
    Perigee 556.991 km 565.125 km
    Orbit Epoch 2026-10-20T12:32:04+0000 2026-10-20T03:32:54+0000

    SENTINEL 1B & LEMUR 2 EMERSONROSE Collision Probability (Pc) Trend

    SENTINEL 1B & LEMUR 2 EMERSONROSE Collision Probability (Pc) TrendNot Available

    SENTINEL 1B & LEMUR 2 EMERSONROSE Miss Distance (Miss Distance) Trend

    SENTINEL 1B & LEMUR 2 EMERSONROSE Miss Distance (Miss Distance) TrendNot Available

    SENTINEL 1BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    LEMUR 2 EMERSONROSEMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SENTINEL 1BCollision Probability Trend

    Object 1 Probability TrendNot Available

    LEMUR 2 EMERSONROSECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SENTINEL 1B

    No nearby objects data