Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.121309E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-24T13:22:53+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    Name TIROS N
    AOE ID 11060
    NORAD ID 11060
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 31511
    NORAD ID 31511
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter TIROS N FENGYUN 1C DEB
    Time of Closest Approach 2026-10-25T04:51:33+0000
    Collision Probability (Pc) 3.121309E-6
    Conjunction Distance (km) 1.929 km
    Relative Speed (km/s) 14.633 km/s
    Conjunction Risk Parameters R (Radial): 1.341 | I (In-track): 0.248 | C (Cross-track): 1.365
    Collision Risk Index (CRI) 0.45
    X Position (km) 4086.525 4086.204
    Position Y (km) -5018.541 -5020.342
    Position Z (km) 3180.56 3181.17
    Velocity X (km/s) -2.99 1.065
    Velocity Y (km/s) 1.745 -3.373
    Velocity Z (km/s) 6.578 -6.517

    Orbital Parameters 国际轨道数据源

    Parameter TIROS N FENGYUN 1C DEB
    Semimajor Axis (a) 7205.504 km 7172.632 km
    Eccentricity (e) 0.000956 0.010752
    Inclination (i) 98.4492° 99.0786°
    RAAN 311.9947° 123.1478°
    Perigee Argument 225.3223° 34.9587°
    Mean Anomaly (M) 134.7175° 325.8592°
    Apogee 834.260 km 871.614 km
    Perigee 820.474 km 717.376 km
    Orbit Epoch 2026-10-23T18:53:54+0000 2026-10-23T18:32:51+0000

    TIROS N & FENGYUN 1C DEB Collision Probability (Pc) Trend

    TIROS N & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    TIROS N & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    TIROS N & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    TIROS NMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TIROS NCollision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TIROS N

    No nearby objects data