An on-orbit upgrade and maintenance operation of BDS-3 IGSO-2 satellite, IGSO-3 satellite, and GEO-2 satellite will be carried out from 17 April 2026. According to the maintenance process, a single satellite will be set to be unusable for about 4 hours. 

As for IGSO-2 satellite, the detailed duration is from UTC 17 April 2026, 00:00, to UTC 17 April 2026, 04:00; as for IGSO-3 satellite, the detailed duration is from UTC 17 April 2026, 06:00, to UTC 17 April 2026, 10:00; as for GEO-2 satellite, the detailed duration is from UTC 17 April 2026, 13:00, to UTC 17 April 2026, 17:00.