Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.328642E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T03:45:13+0800
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    1 Object 1

    Name IRS 1C
    AOE ID 23751
    NORAD ID 23751
    Object Type PAYLOAD
    Country
    IN IN
    ← VS →

    2 Object 2

    AOE ID 40473
    NORAD ID 40473
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter IRS 1C DMSP 5D-2 F13 DEB
    Time of Closest Approach 2026-10-26T09:54:52+0000
    Collision Probability (Pc) 2.328642E-6
    Conjunction Distance (km) 2.174 km
    Relative Speed (km/s) 14.729 km/s
    Conjunction Risk Parameters R (Radial): -2.159 | I (In-track): 0.044 | C (Cross-track): -0.242
    Collision Risk Index (CRI) 0.42
    X Position (km) -5140.682 -5138.976
    Position Y (km) 4503.066 4501.899
    Position Z (km) -2255.617 -2254.943
    Velocity X (km/s) 2.535 -0.924
    Velocity Y (km/s) -0.589 2.394
    Velocity Z (km/s) -6.972 7.031

    Orbital Parameters 国际轨道数据源

    Parameter IRS 1C DMSP 5D-2 F13 DEB
    Semimajor Axis (a) 7191.366 km 7270.815 km
    Eccentricity (e) 0.000096 0.012402
    Inclination (i) 99.0157° 98.7040°
    RAAN 319.3710° 133.4366°
    Perigee Argument 84.5784° 14.8733°
    Mean Anomaly (M) 275.5503° 345.6028°
    Apogee 813.916 km 982.849 km
    Perigee 812.542 km 802.507 km
    Orbit Epoch 2026-10-24T01:19:14+0000 2026-10-23T20:16:03+0000

    IRS 1C & DMSP 5D-2 F13 DEB Collision Probability (Pc) Trend

    IRS 1C & DMSP 5D-2 F13 DEB Collision Probability (Pc) TrendNot Available

    IRS 1C & DMSP 5D-2 F13 DEB Miss Distance (Miss Distance) Trend

    IRS 1C & DMSP 5D-2 F13 DEB Miss Distance (Miss Distance) TrendNot Available

    IRS 1CMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    DMSP 5D-2 F13 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRS 1CCollision Probability Trend

    Object 1 Probability TrendNot Available

    DMSP 5D-2 F13 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRS 1C

    No nearby objects data