Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.677495E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T03:10:18+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 41140
    NORAD ID 41140
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 62701
    NORAD ID 62701
    Object Type PAYLOAD
    Country
    IN IN

    Conjunction Constraints

    Parameter NOAA 16 DEB FIREFLY-1
    Time of Closest Approach 2026-09-06T00:19:14+0000
    Collision Probability (Pc) 1.677495E-6
    Conjunction Distance (km) 2.536 km
    Relative Speed (km/s) 14.302 km/s
    Conjunction Risk Parameters R (Radial): 1.545 | I (In-track): -0.649 | C (Cross-track): -1.903
    Collision Risk Index (CRI) 0.39
    X Position (km) 1947.606 1945.599
    Position Y (km) -2365.803 -2366.527
    Position Z (km) 6248.544 6247.175
    Velocity X (km/s) 2.011 -5.893
    Velocity Y (km/s) -6.595 3.539
    Velocity Z (km/s) -3.104 3.168

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 16 DEB FIREFLY-1
    Semimajor Axis (a) 6956.867 km 6967.570 km
    Eccentricity (e) 0.002085 0.000500
    Inclination (i) 98.8354° 97.7015°
    RAAN 108.2315° 323.7261°
    Perigee Argument 353.4088° 82.9672°
    Mean Anomaly (M) 6.6853° 277.2115°
    Apogee 593.233 km 592.914 km
    Perigee 564.227 km 585.952 km
    Orbit Epoch 2026-09-03T14:01:49+0000 2026-09-04T06:12:08+0000

    NOAA 16 DEB & FIREFLY-1 Collision Probability (Pc) Trend

    NOAA 16 DEB & FIREFLY-1 Collision Probability (Pc) TrendNot Available

    NOAA 16 DEB & FIREFLY-1 Miss Distance (Miss Distance) Trend

    NOAA 16 DEB & FIREFLY-1 Miss Distance (Miss Distance) TrendNot Available

    NOAA 16 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FIREFLY-1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 16 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    FIREFLY-1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 16 DEB

    No nearby objects data