(U) Coronagraph

(The effects of any budget/program decisions made since the information was collected during 1997-98 are NOT reflected in the National Security Space Road Map (NSSRM).)

Overview: (U)
(U) There are two variations on this solution.  One is to use 2 satellites with coronagraphs on each to triangulate on solar coronal mass ejections (CMEs, which are associated with high-velocity solar wind streams) for detection and notification.  Another option is to fly and test the Space Weather and Terrestrial Hazards (SWATH) experiment.

Description: (U)
(U)  A CONOPS for the triangluation coronapgraphs would place the satellites in orbit around the sun, with one trailing and one leading the earth.  These orbits would require a Delta launch vehicle.  An option would be to place a coronagraph on the moon; then only one coronagraph and bus combination would be needed.  SWATH would be placed in an 800 km sun-synchronous orbit. 

User Impact: (U)
(U) To be supplied.

Programmatics: (U)
(U) Concept/Technology.
	(U) IOC: 10/2011 (1QFY2012).

Related Initiatives: (U)
(U) Solar Mass Ejection Imager, Solar Stereo, SWATH ACTD

Related Requirements: (U)
(U) None.

Related Categories: (U)
(U) Space-Based Sensors

Road Map Placements: (U)
(U) ENVIRONMENTAL MONITORING.

Lead Office: (U)
(U) Air Force.

Date of Information: (U)
02 July 1998

(The effects of any budget/program decisions made since the information was collected during 1997-98 are NOT reflected in the National Security Space Road Map (NSSRM).)