Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    1.188537E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T23:51:41+0800
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    1 Object 1

    AOE ID 4953
    NORAD ID 4953
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 21576
    NORAD ID 21576
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter OPS 5268 (DMSP 5A F3) ORBCOMM-X
    Time of Closest Approach 2026-10-21T21:07:40+0000
    Collision Probability (Pc) 1.188537E-4
    Conjunction Distance (km) 0.622 km
    Relative Speed (km/s) 14.72 km/s
    Conjunction Risk Parameters R (Radial): -0.478 | I (In-track): 0.064 | C (Cross-track): 0.393
    Collision Risk Index (CRI) 0.77
    X Position (km) -5839.116 -5838.647
    Position Y (km) 1105.109 1105.425
    Position Z (km) -3941.512 -3941.254
    Velocity X (km/s) -3.725 4.232
    Velocity Y (km/s) 2.048 0.513
    Velocity Z (km/s) 6.15 -6.139

    Orbital Parameters 国际轨道数据源

    Parameter OPS 5268 (DMSP 5A F3) ORBCOMM-X
    Semimajor Axis (a) 7129.296 km 7124.639 km
    Eccentricity (e) 0.003821 0.000452
    Inclination (i) 98.4602° 98.2811°
    RAAN 162.8677° 354.1082°
    Perigee Argument 49.3747° 129.7153°
    Mean Anomaly (M) 311.0755° 230.4438°
    Apogee 778.399 km 749.726 km
    Perigee 723.919 km 743.278 km
    Orbit Epoch 2026-10-21T02:58:08+0000 2026-10-21T03:30:23+0000

    OPS 5268 (DMSP 5A F3) & ORBCOMM-X Collision Probability (Pc) Trend

    OPS 5268 (DMSP 5A F3) & ORBCOMM-X Collision Probability (Pc) TrendNot Available

    OPS 5268 (DMSP 5A F3) & ORBCOMM-X Miss Distance (Miss Distance) Trend

    OPS 5268 (DMSP 5A F3) & ORBCOMM-X Miss Distance (Miss Distance) TrendNot Available

    OPS 5268 (DMSP 5A F3)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ORBCOMM-XMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OPS 5268 (DMSP 5A F3)Collision Probability Trend

    Object 1 Probability TrendNot Available

    ORBCOMM-XCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 5268 (DMSP 5A F3)

    No nearby objects data