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    Space Conjunction Data Service (SCDS)

    Basic Info
    Advanced Filters
    • ① Extremely Close < 0.02 km
    • ② Close 0.02 ~ 0.1 km
    • ③ Medium 0.1 ~ 0.3 km
    • ④ Long 0.3 ~ 1 km
    • ⑤ Extremely Long ≥ 1 km

    无数据

    • ① Extreme ; 10⁻³
    • ② High 10⁻³ ~ 10⁻⁴
    • ③ Medium 10⁻⁴ ~ 10⁻⁵
    • ④ Low 10⁻⁵ ~ 10⁻⁶
    • ⑤ Minimal ; 10⁻⁶

    无数据

    • Probability Desc
    • Probability Asc
    • TCA Desc
    • TCA Asc
    • Miss Distance Desc
    • Miss Distance Asc

    无数据

    Conjunction Data List Total 58896 records
    Conjunction data in this service is generated through a preliminary screening process based on SGP4 (Simplified General Perturbations Model 4) orbit propagation. Space object ephemerides are propagated using publicly available orbital elements to identify potential close-approach events and produce candidate Conjunction Data Messages (CDMs).
    This dataset is provided as a rapid screening product for preliminary conjunction assessment, supporting early detection and prioritization of potential close-approach events. It serves as upstream input for high-precision orbit determination (OD), covariance analysis, and refined collision probability (Pc) evaluation.
    Data Production Rules
    Minimum Miss Distance ≤ 3 km, latest approach time ≤ 72 hours
    Data Production Rules
    TCA ≤ 72 hours Overall Miss Distance ≤ 3 km
    Collision Probability Levels (1-5)
    ① Extreme ; 10⁻³ ② High 10⁻³ ~ 10⁻⁴ ③ Medium 10⁻⁴ ~ 10⁻⁵ ④ Low 10⁻⁵ ~ 10⁻⁶ ⑤ Minimal ; 10⁻⁶
    Miss Distance Levels (1-5)
    ① Extremely Close < 0.02 km ② Close 0.02 ~ 0.1 km ③ Medium 0.1 ~ 0.3 km ④ Long 0.3 ~ 1 km ⑤ Extremely Long ≥ 1 km
    Total 18 records
    Event ID Objects TCA
    Miss Dist (km)
    Dist Level
    Collision Risk Probability
    Risk Level
    Collision Risk Index (CRI) Action
    CDM_260911-004105-844406-762722
    STARLINK-30963 (58444)
    STARLINK-36502 (67627)
    2026-09-11T
    00:41:21+0000
    0.465 km
    远距离
    1.674705E-4 高风险
    0.79
    Details
    View CDM
    Download CDM
    CDM_260913-022805-844406-220021
    STARLINK-30963 (58444)
    STARLINK-32647 (62200)
    2026-09-13T
    02:28:42+0000
    0.687 km
    远距离
    6.6907E-5 中风险
    0.72
    Details
    View CDM
    Download CDM
    CDM_260911-184405-844406-762721
    STARLINK-30963 (58444)
    STARLINK-36502 (67627)
    2026-09-11T
    18:44:08+0000
    0.873 km
    远距离
    2.755624E-5 中风险
    0.64
    Details
    View CDM
    Download CDM
    CDM_260913-142705-844406-315121
    STARLINK-30963 (58444)
    STARLINK-32876 (63151)
    2026-09-13T
    14:27:33+0000
    0.713 km
    远距离
    2.389026E-5 中风险
    0.63
    Details
    View CDM
    Download CDM
    CDM_260913-020105-844406-319821
    STARLINK-30963 (58444)
    STARLINK-32904 (63198)
    2026-09-13T
    02:01:02+0000
    1.010 km
    极远距离
    1.030368E-5 中风险
    0.55
    Details
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    Download CDM
    CDM_260911-021505-844406-762722
    STARLINK-30963 (58444)
    STARLINK-36502 (67627)
    2026-09-11T
    02:15:30+0000
    1.192 km
    极远距离
    9.44431E-6 低风险
    0.55
    Details
    View CDM
    Download CDM
    CDM_260912-161605-844406-220021
    STARLINK-30963 (58444)
    STARLINK-32647 (62200)
    2026-09-12T
    16:16:43+0000
    1.306 km
    极远距离
    7.85435E-6 低风险
    0.53
    Details
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    Download CDM
    CDM_260911-170905-844406-762721
    STARLINK-30963 (58444)
    STARLINK-36502 (67627)
    2026-09-11T
    17:09:59+0000
    1.307 km
    极远距离
    6.904072E-6 低风险
    0.52
    Details
    View CDM
    Download CDM
    CDM_260912-233905-844406-319821
    STARLINK-30963 (58444)
    STARLINK-32904 (63198)
    2026-09-12T
    23:39:48+0000
    1.173 km
    极远距离
    6.153484E-6 低风险
    0.51
    Details
    View CDM
    Download CDM
    CDM_260913-164805-844406-315121
    STARLINK-30963 (58444)
    STARLINK-32876 (63151)
    2026-09-13T
    16:48:48+0000
    1.217 km
    极远距离
    3.935053E-6 低风险
    0.47
    Details
    View CDM
    Download CDM
    CDM_260913-092800-066005-844421
    THOR ABLESTAR DEB (660)
    STARLINK-30963 (58444)
    2026-09-13T
    09:28:10+0000
    1.807 km
    极远距离
    3.353164E-6 低风险
    0.46
    Details
    View CDM
    Download CDM
    CDM_260911-212705-844406-436821
    STARLINK-30963 (58444)
    STARLINK-34457 (64368)
    2026-09-11T
    21:27:03+0000
    2.341 km
    极远距离
    1.773023E-6 低风险
    0.4
    Details
    View CDM
    Download CDM
    CDM_260910-230705-844406-762722
    STARLINK-30963 (58444)
    STARLINK-36502 (67627)
    2026-09-10T
    23:07:12+0000
    2.072 km
    极远距离
    1.771009E-6 低风险
    0.4
    Details
    View CDM
    Download CDM
    CDM_260912-053005-717005-844421
    OBJECT E (57170)
    STARLINK-30963 (58444)
    2026-09-12T
    05:30:01+0000
    2.953 km
    极远距离
    1.237777E-6 低风险
    0.37
    Details
    View CDM
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    CDM_260911-201805-844406-762721
    STARLINK-30963 (58444)
    STARLINK-36502 (67627)
    2026-09-11T
    20:18:17+0000
    2.811 km
    极远距离
    1.015241E-6 低风险
    0.35
    Details
    View CDM
    Download CDM
    CDM_260911-034905-844406-762722
    STARLINK-30963 (58444)
    STARLINK-36502 (67627)
    2026-09-11T
    03:49:40+0000
    2.869 km
    极远距离
    9.884549E-7 极低风险
    0.35
    Details
    View CDM
    Download CDM
    CDM_260913-125305-844406-315121
    STARLINK-30963 (58444)
    STARLINK-32876 (63151)
    2026-09-13T
    12:53:24+0000
    2.685 km
    极远距离
    5.662725E-7 极低风险
    0.3
    Details
    View CDM
    Download CDM
    CDM_260913-151405-844406-315121
    STARLINK-30963 (58444)
    STARLINK-32876 (63151)
    2026-09-13T
    15:14:38+0000
    2.742 km
    极远距离
    5.511476E-7 极低风险
    0.3
    Details
    View CDM
    Download CDM
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