Chapman Conference and AGU NCTS approvals have gone out
2.0 Orbit Management:
3.0 Tetrahedron Management:
Resize maneuver was during Rev 217&218. Tq= 1, QAv = 0.947. Prediction is that another formation maintenance maneuver won't be needed until Rev 251/252 (DOY 322/323).
STP-MMS-P40: Spacecraft Constellation Formation Quality. A Quality Factor shall be developed that defines the usefulness of the tetrahedron formation of the four spacecraft that is the product of two functions. One function is a metric of the inner spacecraft separation, and the other is a metric of the tetrahedron shape. This Quality Factor shall be greater than or equal to 0.7 for 80% of the time in the regions of science interest. The regions of science interest are defined as geocentric distances >9 RE for Phase 1, and >15 RE for Phase 2. There is no formation requirement or region of science interest defined during the transition from Phase 1 to Phase 2.
Phase 1a – September 1, 2015 Phase 1x – March 8, 2016 Phase 1b – September 26, 2016 Phase 2a – January 31, 2017 Phase 2b – May 1, 2017