Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    4.611459E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T15:11:54+0800
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    1 Object 1

    Name NOAA 12
    AOE ID 21263
    NORAD ID 21263
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    Name SAFIR 2
    AOE ID 25399
    NORAD ID 25399
    Object Type PAYLOAD
    Country
    DE DE

    Conjunction Constraints

    Parameter NOAA 12 SAFIR 2
    Time of Closest Approach 2026-09-07T15:35:55+0000
    Collision Probability (Pc) 4.611459E-7
    Conjunction Distance (km) 1.968 km
    Relative Speed (km/s) 0.229 km/s
    Conjunction Risk Parameters R (Radial): -0.885 | I (In-track): 1.757 | C (Cross-track): 0.038
    Collision Risk Index (CRI) 0.28
    X Position (km) 1679.659 1678.555
    Position Y (km) 692.479 690.927
    Position Z (km) -6959.002 -6958.507
    Velocity X (km/s) -3.661 -3.473
    Velocity Y (km/s) -6.287 -6.407
    Velocity Z (km/s) -1.52 -1.475

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 12 SAFIR 2
    Semimajor Axis (a) 7180.723 km 7184.486 km
    Eccentricity (e) 0.001412 0.000087
    Inclination (i) 98.6288° 98.9849°
    RAAN 235.2936° 236.4245°
    Perigee Argument 151.3089° 218.4697°
    Mean Anomaly (M) 208.8871° 141.6419°
    Apogee 812.724 km 806.973 km
    Perigee 792.448 km 805.725 km
    Orbit Epoch 2026-09-04T22:26:10+0000 2026-09-04T10:35:32+0000

    NOAA 12 & SAFIR 2 Collision Probability (Pc) Trend

    NOAA 12 & SAFIR 2 Collision Probability (Pc) TrendNot Available

    NOAA 12 & SAFIR 2 Miss Distance (Miss Distance) Trend

    NOAA 12 & SAFIR 2 Miss Distance (Miss Distance) TrendNot Available

    NOAA 12Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SAFIR 2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 12Collision Probability Trend

    Object 1 Probability TrendNot Available

    SAFIR 2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 12

    No nearby objects data