IRS 1B FENGYUN 1C DEB

0.359% collision chance on 2025-01-27 12:01:39z

CDM information

Conjunction Data Message description

IRS 1B is risking orbital collision with FENGYUN 1C DEB. The time of closest approach (TCA) between the two objects is calculated to be at Jan. 27, 2025, 12:39 p.m., with a collision probability of 0.359%. The closest distance at TCA is estimated to be 95.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object IRS 1B in its detailed page.

Key information

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

TCA: 2025-01-27 12:39:31z

CDM ID: 927121666

Miss distance: 95.0 (m)

Collision probability: 0.003594311 (~0.359%)

Last Updated: 3 months, 1 week ago

Objects comparison

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

IRS 1B	Name	FENGYUN 1C DEB
21688	Norad ID	31284
PAYLOAD	Type	DEBRIS
SSO	Orbit	SSO
99.4°	Inclination	99.72°
LARGE	Size	SMALL
IND	Country	PRC
Aug. 29, 1991	Launch date	May 10, 1999
	Full details

Live tracking

Real-time ground track for IRS 1B and FENGYUN 1C DEB.

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