Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.166617E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T21:34:18+0800
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    1 Object 1

    Name ANNA 1B
    AOE ID 446
    NORAD ID 446
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 14511
    NORAD ID 14511
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter ANNA 1B COSMOS 970 DEB
    Time of Closest Approach 2026-10-29T08:21:23+0000
    Collision Probability (Pc) 1.166617E-6
    Conjunction Distance (km) 2.559 km
    Relative Speed (km/s) 7.885 km/s
    Conjunction Risk Parameters R (Radial): 1.181 | I (In-track): -1.916 | C (Cross-track): 1.217
    Collision Risk Index (CRI) 0.36
    X Position (km) 2513.527 2511.802
    Position Y (km) -4257.419 -4258.757
    Position Z (km) 5572.464 5573.798
    Velocity X (km/s) 5.39 6.237
    Velocity Y (km/s) 4.817 -1.233
    Velocity Z (km/s) 1.273 -3.713

    Orbital Parameters 国际轨道数据源

    Parameter ANNA 1B COSMOS 970 DEB
    Semimajor Axis (a) 7504.721 km 7553.517 km
    Eccentricity (e) 0.007030 0.013293
    Inclination (i) 50.1410° 64.6782°
    RAAN 238.0389° 158.1580°
    Perigee Argument 47.2595° 110.3601°
    Mean Anomaly (M) 88.5323° 328.2392°
    Apogee 1179.340 km 1275.792 km
    Perigee 1073.828 km 1074.968 km
    Orbit Epoch 2026-10-27T04:33:46+0000 2026-10-27T01:40:55+0000

    ANNA 1B & COSMOS 970 DEB Collision Probability (Pc) Trend

    ANNA 1B & COSMOS 970 DEB Collision Probability (Pc) TrendNot Available

    ANNA 1B & COSMOS 970 DEB Miss Distance (Miss Distance) Trend

    ANNA 1B & COSMOS 970 DEB Miss Distance (Miss Distance) TrendNot Available

    ANNA 1BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 970 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ANNA 1BCollision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 970 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ANNA 1B

    No nearby objects data