Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.580385E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T01:40:04+0800
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    1 Object 1

    AOE ID 48487
    NORAD ID 48487
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name ETV-A1
    AOE ID 51060
    NORAD ID 51060
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter STARLINK-2494 ETV-A1
    Time of Closest Approach 2026-10-27T21:21:56+0000
    Collision Probability (Pc) 1.580385E-6
    Conjunction Distance (km) 2.659 km
    Relative Speed (km/s) 14.775 km/s
    Conjunction Risk Parameters R (Radial): 1.008 | I (In-track): -0.636 | C (Cross-track): -2.376
    Collision Risk Index (CRI) 0.39
    X Position (km) -6686.797 -6685.426
    Position Y (km) -661.951 -664.101
    Position Z (km) -1152.214 -1152.966
    Velocity X (km/s) -0.556 1.174
    Velocity Y (km/s) -4.729 1.103
    Velocity Z (km/s) 5.986 -7.478

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2494 ETV-A1
    Semimajor Axis (a) 6820.263 km 6814.856 km
    Eccentricity (e) 0.000158 0.000390
    Inclination (i) 53.1598° 97.2730°
    RAAN 196.0684° 6.2471°
    Perigee Argument 56.6389° 206.6269°
    Mean Anomaly (M) 335.2492° 153.4779°
    Apogee 443.206 km 439.380 km
    Perigee 441.046 km 434.058 km
    Orbit Epoch 2026-10-27T06:00:04+0000 2026-10-27T04:59:02+0000

    STARLINK-2494 & ETV-A1 Collision Probability (Pc) Trend

    STARLINK-2494 & ETV-A1 Collision Probability (Pc) TrendNot Available

    STARLINK-2494 & ETV-A1 Miss Distance (Miss Distance) Trend

    STARLINK-2494 & ETV-A1 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2494Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ETV-A1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2494Collision Probability Trend

    Object 1 Probability TrendNot Available

    ETV-A1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2494

    No nearby objects data