DELTA 1 DEB EXPLORER 25 (INJUN-4)

0.010% collision chance on 2024-09-09 14:09:02z

CDM information

Conjunction Data Message description

DELTA 1 DEB is risking orbital collision with EXPLORER 25 (INJUN-4). The time of closest approach (TCA) between the two objects is calculated to be at Sept. 9, 2024, 2:02 p.m., with a collision probability of 0.010%. The closest distance at TCA is estimated to be 681.0 meters.

Key information

Parameters and calculations for this potential in-orbit collision event.

CDM image for a debris

TCA: 2024-09-09 14:02:34z

CDM ID: 812383786

Miss distance: 681.0 (m)

Collision probability: 0.0001042778 (~0.010%)

Objects comparison

A comparison of the two objects interested by this conjunction data message.

DELTA 1 DEB Name EXPLORER 25 (INJUN-4)
12179 Norad ID 932
DEBRIS Type PAYLOAD
SSO Orbit HEO
99.14° Inclination 81.34°
SMALL Size MEDIUM
US Country US
March 5, 1978 Launch date Nov. 21, 1964
Full details

Live tracking

Real-time ground track for DELTA 1 DEB and EXPLORER 25 (INJUN-4).


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