Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.195106E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T21:30:43+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 21277
    NORAD ID 21277
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 48798
    NORAD ID 48798
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter DELTA 1 DEB ONEWEB-0248
    Time of Closest Approach 2026-09-13T16:44:17+0000
    Collision Probability (Pc) 1.195106E-5
    Conjunction Distance (km) 1.245 km
    Relative Speed (km/s) 13.667 km/s
    Conjunction Risk Parameters R (Radial): 0.164 | I (In-track): 0.402 | C (Cross-track): 1.168
    Collision Risk Index (CRI) 0.57
    X Position (km) 580.857 581.7
    Position Y (km) 1643.702 1642.834
    Position Z (km) -7385.728 -7386.023
    Velocity X (km/s) 6.607 -3.411
    Velocity Y (km/s) 2.677 -6.169
    Velocity Z (km/s) 1.213 -1.641

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB ONEWEB-0248
    Semimajor Axis (a) 7565.567 km 7579.905 km
    Eccentricity (e) 0.013272 0.000205
    Inclination (i) 99.7577° 87.8978°
    RAAN 21.5024° 242.1798°
    Perigee Argument 24.5427° 71.9239°
    Mean Anomaly (M) 352.6118° 288.2115°
    Apogee 1287.838 km 1203.321 km
    Perigee 1087.022 km 1200.215 km
    Orbit Epoch 2026-09-11T06:59:05+0000 2026-09-10T12:35:46+0000

    DELTA 1 DEB & ONEWEB-0248 Collision Probability (Pc) Trend

    DELTA 1 DEB & ONEWEB-0248 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & ONEWEB-0248 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & ONEWEB-0248 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ONEWEB-0248Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ONEWEB-0248Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data