Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.80484E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T02:55:13+0800
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    1 Object 1

    Name KOSEN-1
    AOE ID 49402
    NORAD ID 49402
    Object Type PAYLOAD
    Country
    JP JP
    ← VS →

    2 Object 2

    AOE ID 60493
    NORAD ID 60493
    Object Type PAYLOAD
    Country
    AR AR

    Conjunction Constraints

    Parameter KOSEN-1 NUSAT-50 (NANCY ROMAN)
    Time of Closest Approach 2026-10-20T06:28:29+0000
    Collision Probability (Pc) 2.80484E-6
    Conjunction Distance (km) 1.591 km
    Relative Speed (km/s) 5.257 km/s
    Conjunction Risk Parameters R (Radial): -0.453 | I (In-track): 1.429 | C (Cross-track): 0.531
    Collision Risk Index (CRI) 0.44
    X Position (km) -96.164 -97.672
    Position Y (km) -926.978 -926.746
    Position Z (km) 6779.201 6778.754
    Velocity X (km/s) -6.817 -7.418
    Velocity Y (km/s) 3.416 -1.758
    Velocity Z (km/s) 0.363 -0.347

    Orbital Parameters 国际轨道数据源

    Parameter KOSEN-1 NUSAT-50 (NANCY ROMAN)
    Semimajor Axis (a) 6858.923 km 6853.147 km
    Eccentricity (e) 0.001471 0.000463
    Inclination (i) 97.3064° 97.3700°
    RAAN 331.8653° 12.4199°
    Perigee Argument 124.5989° 108.0417°
    Mean Anomaly (M) 235.6641° 252.1329°
    Apogee 490.879 km 478.184 km
    Perigee 470.693 km 471.836 km
    Orbit Epoch 2026-10-19T01:48:39+0000 2026-10-19T00:15:15+0000

    KOSEN-1 & NUSAT-50 (NANCY ROMAN) Collision Probability (Pc) Trend

    KOSEN-1 & NUSAT-50 (NANCY ROMAN) Collision Probability (Pc) TrendNot Available

    KOSEN-1 & NUSAT-50 (NANCY ROMAN) Miss Distance (Miss Distance) Trend

    KOSEN-1 & NUSAT-50 (NANCY ROMAN) Miss Distance (Miss Distance) TrendNot Available

    KOSEN-1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NUSAT-50 (NANCY ROMAN)Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    KOSEN-1Collision Probability Trend

    Object 1 Probability TrendNot Available

    NUSAT-50 (NANCY ROMAN)Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with KOSEN-1

    No nearby objects data