This segment covers the period from 14 March 2020 to 06 June 2020, after the short eclipse season. For the eclipse season the payload will be off, the eclipse times are: on SC3 and SC4 24/02/2020 12:00 - 15/03/2020 00:00 and on SC1 and SC2 are 24/02/2020 12:00 - 17/03/2020 00:00. During this eclipse season in order to accommodate BM1 requests for the Cluster /MMS conjunctions, payload will be switched on for the two periods which will be managed by ESOC: (i) 20/03/03 09:30 – 12:00, BM1 mode; (ii) 20/03/10 05:40 - 10:20 1h NM1 + 2.5h BM1+1h NM1.

This segment has 135% data volume as a baseline, however in some PPs the data rate can be increased up to 140% if required due to science targets allocation.

This segment includes a moon eclipse on 22/04/2020 on C2 during the period 09:44-10:28, and on C1 during the period 10:06 - 10:49. The science operations will cease for several hours around eclipse times, due to lack of power. Exact time of power off TBD.

There are manoeuvres on C3 on 02-03/05/2020, on C1 and C2 on 03/05/2020, on C3 on 09/05/2020, on C1 and C2 on 09-10/05/2020, C1, C2 and C3 on 18-19/05/2020, and on C2 on 01/06/2020. For more information, ​http://jsocwiki.rl.ac.uk/attachment/wiki/WikiStart/manoeuvres_dec2019-may2020.pdf.

The primary BM1 science targets are magnetopause, bow shock, Cluster/MMS conjunctions at the magnetopause and Cluster GI ECS intervals (southern cusp).