Space Conjunction Data Service

    A global standardized CDM data service platform for space conjunction detection, risk analytics

    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
    Today Events
    0
    Period: 07-22 00:00 ~ 07-22 23:59
    Month Events
    0
    Period: 07-01 ~ 07-31
    Next 3 Days Events
    0
    Period: 07-22 00:00 ~ Day 3 23:59
    High Risk Events
    0
    Extreme(>10⁻³) + High(10⁻³~10⁻⁴)
    Monitored Objects
    0
    Total monitored space objects

    Collision Level Distribution (Next 3 Days)

    Data Update Time:2026-07-22T13:00:00Z
    Extreme Risk 396 0.2%
    High Risk 999+ 0.7%
    Medium Risk 999+ 6.1%
    Low Risk 999+ 38.4%
    Very Low Risk 999+ 54.6%
    Collision Probability Levels (1-5)

    Upcoming Collision Events (Next 3 Days)

    Data Update Time:2026-07-22T13:00:00Z
    2026-07-24T22:04:00+0800 极高风险: 1.478225E-2
    2026-07-24T02:37:59+0800 极高风险: 1.423915E-2
    2026-07-24T18:45:31+0800 极高风险: 1.134824E-2
    View All Events

    Miss Distance Level Distribution (Next 3 Days)

    Data Update Time:2026-07-22T13:00:00Z
    Extremely Close Range 196 0.1%
    Close Range 375 0.2%
    Medium Range 999+ 1.6%
    Long Range 999+ 13.2%
    Extremely Long Range 999+ 84.9%
    Miss Distance Levels (1-5)

    Upcoming Miss Distance Events (Next 3 Days)

    Data Update Time:2026-07-22T13:00:00Z
    2026-07-24T22:04:00+0800 极近距离: 0.017km
    2026-07-24T02:37:59+0800 极近距离: 0.017km
    2026-07-24T18:45:31+0800 极近距离: 0.019km
    View All Events

    Recent Conjunction Events

    Event ID Objects TCA Probability Miss Distance Dist Level Prob Level Action
    CDM_260722-000101-186901-736928 2026-07-22T08:01:06+0800 1.118003E-6 1.87 km 极远距离 低风险
    CDM_260722-000202-889703-149725 2026-07-22T08:02:54+0800 3.522039E-6 1.054 km 极远距离 低风险
    CDM_260722-000300-902305-666526 2026-07-22T08:03:17+0800 7.716516E-7 2.25 km 极远距离 极低风险
    CDM_260722-000300-033002-242128 2026-07-22T08:03:58+0800 9.39452E-7 2.04 km 极远距离 极低风险
    CDM_260722-000500-001101-240427
    SL-8 DEB (12404)
    2026-07-22T08:05:32+0800 1.440962E-5 0.521 km 远距离 中风险
    CDM_260722-000502-036002-773322 2026-07-22T08:05:43+0800 5.730411E-7 2.611 km 极远距离 极低风险
    CDM_260722-000803-155904-458922 2026-07-22T08:08:05+0800 5.26973E-7 2.723 km 极远距离 极低风险
    CDM_260722-000800-956801-417127 2026-07-22T08:08:26+0800 1.113012E-5 0.593 km 远距离 中风险
    CDM_260722-000900-829901-636822 2026-07-22T08:09:07+0800 6.275921E-7 2.495 km 极远距离 极低风险
    CDM_260722-000903-582403-910521 2026-07-22T08:09:23+0800 9.49705E-7 2.029 km 极远距离 极低风险
    View All Events

    Event Alert Subscription

    Receive instant alerts for conjunctions of your tracked objects

    Submission coming soon. Please contact our sales for activation.

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    Real-time CDM push to email or API endpoints
    Custom probability thresholds and alert rules
    7×24 dedicated technical support team
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