Issue 143

China’s SY-12 02 Flyby of Iran’s Jam e Jam

5 Apr 2026: Suspected Chinese inspector satellite Shiyan-12 02 (50322) passed ~71km of Iran’s new GEO satellite Jam e Jam 1 (67757). The fly-by opportunity occurred at ~34°E longitude and solar conditions were ideal for SY-12 02 to observe the Iranian satellite. SY-12 02 decreased its SMA to initiate an eastward drift on 14 Mar 2026 when the satellite was over 19.6°E.

5 Apr 2026: Suspected Chinese inspector satellite Shiyan-12 02 (50322) passed ~71km of Iran’s new GEO satellite Jam e Jam 1 (67757). The fly-by opportunity occurred at ~34°E longitude and solar conditions were ideal for SY-12 02 to observe the Iranian satellite.

 

SY-12 02 decreased its SMA to initiate an eastward drift on 14 Mar 2026 when the satellite was over 19.6°E. This maneuver was consistent with SY-12 02’s pattern of life. It does not appear that SY-12 02 made any maneuvers in preparation for its 71km fly-by of Jam e Jam 1.

The Joint Commercial Operations cell (JCO) noted a photometric change with SY-12 02 at the time of closest approach with Jam e Jam 1. The photometric change is not consistent with SY-12 02’s pattern of life.

5 Apr 2026 0225Z: China’s GEO Inspector Satellite Shiyan-12 02 was ~71km from Iran’s First GEO Satellite, Jam e Jam 1.
SY-12 02 had Ideal Lighting Conditions to Observe Jam e Jam.
(saberastro.com)