NASA 2001 Mars Odyssey page 1 Workshop HEND Institute for Space Research, June , 2003 HEND data for solar events and for orbital variation of background V. Tret’yakov,, S. Charyshnikov, V. Grinkov, A.Kozyrev, M. Litvak, I. Mitrofanov, A.Sanin Institute for Space Research

NASA 2001 Mars Odyssey page 2 Workshop HEND Institute for Space Research, June , HEND low energy background variation Anomalous signal in soft channels of anticoincidence detector

NASA 2001 Mars Odyssey page 3 Workshop HEND Institute for Space Research, June , 2003 AEROBRAKING History CRUISE Time profiles for S4, S5 and soft channel S6 for June 2001 Time profiles for S4, S5 and soft channel S6 for October 24 – November 29 S4 – neutron signal in Stilbene /upper plots/ S5 – gamma signal in Stilbene /middle plots/ S6 – gamma signal in CsI(Tl) / down plots with only soft channels/ S4 S5 S4 S5 S6

NASA 2001 Mars Odyssey page 4 Workshop HEND Institute for Space Research, June , 2003 History HEND map for April 2002 April 2002 Full profile MAPPING

NASA 2001 Mars Odyssey page 5 Workshop HEND Institute for Space Research, June , 2003 History Night side Day side Fine structure 13 Apr Full profile MAPPING April 2002

NASA 2001 Mars Odyssey page 6 Workshop HEND Institute for Space Research, June , 2003 June 2002 July 2002 MAPPING History

NASA 2001 Mars Odyssey page 7 Workshop HEND Institute for Space Research, June , 2003 I II III safe mode November November 1- 2 November November 2002

NASA 2001 Mars Odyssey page 8 Workshop HEND Institute for Space Research, June , 2003 II I 1- 2 December 3- 4 December December 2002

NASA 2001 Mars Odyssey page 9 Workshop HEND Institute for Space Research, June , 2003 Time profile of AS_S6_HEND for March 2003 I March March

NASA 2001 Mars Odyssey page 10 Workshop HEND Institute for Space Research, June , 2003 January 2003 History Full profile HEND map for January 2003

NASA 2001 Mars Odyssey page 11 Workshop HEND Institute for Space Research, June , 2003 Night side Day side History Fine structure 31 Jan Full profile January 2003

NASA 2001 Mars Odyssey page 12 Workshop HEND Institute for Space Research, June , 2003 Night side Day side History January 2003 Full profile

NASA 2001 Mars Odyssey page 13 Workshop HEND Institute for Space Research, June , 2003 AS_S6_HEND vs Radius April 2002 May 2002 January 2003 December 2002

NASA 2001 Mars Odyssey page 14 Workshop HEND Institute for Space Research, June , 2003 MSO frame X Y Z MARS SUN Velocity of Mars F q

NASA 2001 Mars Odyssey page 15 Workshop HEND Institute for Space Research, June , 2003 September 2002 AS_S6_HEND in MSO_frame Night side Day side Full profile terminator Direction to Sun

NASA 2001 Mars Odyssey page 16 Workshop HEND Institute for Space Research, June , 2003 November 2002 AS_S6_HEND in MSO_frame Night side Day side Full profile safe mode

NASA 2001 Mars Odyssey page 17 Workshop HEND Institute for Space Research, June , 2003 AS_S6_HEND in MSO_frame Night side Day side November 2002 Full profile safe mode

NASA 2001 Mars Odyssey page 18 Workshop HEND Institute for Space Research, June , 2003 AS_S6_HEND in MSO_frame Night side Day side November 2002 Full profile safe mode

NASA 2001 Mars Odyssey page 19 Workshop HEND Institute for Space Research, June , 2003 AS_S6_HEND in MSO_frame Night side Day side November 2002 Full profile safe mode

NASA 2001 Mars Odyssey page 20 Workshop HEND Institute for Space Research, June , 2003 AS_S6_HEND in MSO_frame Night side Day side November 2002 Full profile safe mode

NASA 2001 Mars Odyssey page 21 Workshop HEND Institute for Space Research, June , 2003 AS_S6_HEND in MSO_frame Night side Day side November 2002 Full profile safe mode

NASA 2001 Mars Odyssey page 22 Workshop HEND Institute for Space Research, June , Solar activity as seen by HEND

NASA 2001 Mars Odyssey page 23 Workshop HEND Institute for Space Research, June , 2003 S4 S5 S6 S4 S5 S6 S4 – neutron signal in Stilbene /upper plots/ S5 – gamma signal in Stilbene /middle plots/ S6 – gamma signal in CsI(Tl) / down plots with only soft channels/ S6 S5 S4 CRUISE AEROBRAKING GOESGOESGOESGOES HENDHENDHENDHEND

NASA 2001 Mars Odyssey page 24 Workshop HEND Institute for Space Research, June , 2003 SPE 2002_July_16 S4 S5 S6 GOESGOESGOESGOES HENDHENDHENDHEND

NASA 2001 Mars Odyssey page 25 Workshop HEND Institute for Space Research, June , 2003 SPE 2002_August_13 GOESGOESGOESGOES HENDHENDHENDHEND

NASA 2001 Mars Odyssey page 26 Workshop HEND Institute for Space Research, June , 2003 S4 – neutron signal in Stilbene /upper plots/ S5 – gamma signal in Stilbene /middle plots/ S6 – gamma signal in CsI(Tl) / down plots with only soft channels/ HEND-GRS-MARIE 14 October 2002 HEND 14 October 2002 SPE

NASA 2001 Mars Odyssey page 27 Workshop HEND Institute for Space Research, June , 2003 HEND MARIE 28 October 2002 S4 – neutron signal in Stilbene /upper plots/ S5 – gamma signal in Stilbene /middle plots/ S6 – gamma signal in CsI(Tl) / down plots with only soft channels/

NASA 2001 Mars Odyssey page 28 Workshop HEND Institute for Space Research, June , October October 2002 SPE AS_S6_HEND in MSO_frame

NASA 2001 Mars Odyssey page 29 Workshop HEND Institute for Space Research, June , 2003 SPE 18 March 2003 GOESGOESGOESGOES HENDHENDHENDHEND MARIEMARIEMARIEMARIE S4 – neutron signal in Stilbene /upper plots/ S5 – gamma signal in Stilbene /middle plots/ S6 – gamma signal in CsI(Tl) / down plots with only soft channels/

NASA 2001 Mars Odyssey page 30 Workshop HEND Institute for Space Research, June , 2003 GOESGOESGOESGOES HENDHENDHENDHEND Solar proton event 2003_May_28

NASA 2001 Mars Odyssey page 31 Workshop HEND Institute for Space Research, June , Comparison for HEND data and MARIE dose

NASA 2001 Mars Odyssey page 32 Workshop HEND Institute for Space Research, June , 2003 HENDHENDHENDHEND MARIEMARIEMARIEMARIE

NASA 2001 Mars Odyssey page 33 Workshop HEND Institute for Space Research, June , 2003 MARIEMARIEMARIEMARIE HENDHENDHENDHEND

NASA 2001 Mars Odyssey page 34 Workshop HEND Institute for Space Research, June , 2003 Future tasks Compare the data of GRS, NS, MARIE and HEND concerning background variations Compare the data from near-Earth SC and 2001 Mars Odyssey for solar proton events and for solar flares Build phenomenology model of the variation