Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.391724E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T23:39:34+0800
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    1 Object 1

    Name SJ-26
    AOE ID 64199
    NORAD ID 64199
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    Name HELIOS
    AOE ID 69021
    NORAD ID 69021
    Object Type PAYLOAD
    Country
    GR GR

    Conjunction Constraints

    Parameter SJ-26 HELIOS
    Time of Closest Approach 2026-09-06T12:19:12+0000
    Collision Probability (Pc) 1.391724E-6
    Conjunction Distance (km) 2.934 km
    Relative Speed (km/s) 15.091 km/s
    Conjunction Risk Parameters R (Radial): 2.654 | I (In-track): 0.167 | C (Cross-track): -1.24
    Collision Risk Index (CRI) 0.38
    X Position (km) -5708.103 -5709.616
    Position Y (km) 3754.308 3756.801
    Position Z (km) -821.499 -821.819
    Velocity X (km/s) 1.281 -0.201
    Velocity Y (km/s) 0.346 1.312
    Velocity Z (km/s) -7.492 7.495

    Orbital Parameters 国际轨道数据源

    Parameter SJ-26 HELIOS
    Semimajor Axis (a) 6870.830 km 6881.214 km
    Eccentricity (e) 0.002023 0.000651
    Inclination (i) 97.4501° 97.3906°
    RAAN 325.2504° 143.4395°
    Perigee Argument 76.7057° 76.5960°
    Mean Anomaly (M) 283.6435° 283.6001°
    Apogee 506.593 km 507.559 km
    Perigee 478.793 km 498.595 km
    Orbit Epoch 2026-09-04T04:21:54+0000 2026-09-04T03:30:23+0000

    SJ-26 & HELIOS Collision Probability (Pc) Trend

    SJ-26 & HELIOS Collision Probability (Pc) TrendNot Available

    SJ-26 & HELIOS Miss Distance (Miss Distance) Trend

    SJ-26 & HELIOS Miss Distance (Miss Distance) TrendNot Available

    SJ-26Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HELIOSMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SJ-26Collision Probability Trend

    Object 1 Probability TrendNot Available

    HELIOSCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SJ-26

    No nearby objects data