1. Relating Mars Observations with Earth Observations Odyssey/GOES Energetic Particle Data Comparison ( ) Ron Turner, John Starcher, Matt Rudy (ANSER) Cary Zeitlin (LBNL) A month-by-month comparison of Odyssey count-rate data with GOES integral particle flux data
Mars data are derived from the count-rate on the MARIE, Gamma Ray Spectrometer (GRS), and High Energy Neutron Detector (HEND) instruments on the Odyssey Spacecraft in orbit around Mars Earth data are derived from the GOES Space Environment Monitor in geostationary Earth orbit (archived by the National Geophysical Data Center) A side-bar shows the relative positions of Earth and Mars at the beginning, middle, and end of each month

2. Legend
Mars Odyssey data from MARIE, Gamma Ray Spectrometer (GRS), and High Energy Neutron Detector (HEND) from April 2002 through December 2005
MARIE data is from the entrance silicon detector (“A1”)
Most of the count rate is from protons with energy >20 MeV up to approximately 1 GeV
Count rate was normalized to 2002 quiet time background
Counts per minute averaged over 10 minutes
Time stamp is middle of 10 minute interval
Scale factor is 569
So a “1” is 569 counts per minute
GRS data is from the GRS Upper Level Discriminator (ULD)
Most of the count rate is from protons with energy >35-40 MeV to well over 1 GeV
Scale factor is 1678
So a “1” is 1678 counts per minute averaged over 10 minutes
HEND data is from the inner scintillator
Minimum energy sensitivity varies over time from a few to a few tens of MeV
Counts per five minutes averaged over 60 minutes
Time stamp is middle of hour interval
Scale factor is 92.5
So a “1” is 92.5 counts per five minutes averaged over an hour

3. Odyssey and GOES Data March 20021 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26 31

4. Odyssey and GOES Data April 20021 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26 31

5. Odyssey and GOES Data May 20021 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 1 6 11 16 21 26 31

6. Odyssey and GOES Data June 20021 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26 31

7. Odyssey and GOES Data July 20021 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26 31

8. Odyssey and GOES Data August 20021 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26 31

9. Odyssey and GOES Data September 20021 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26 31

10. Odyssey and GOES Data October 20021 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 1 6 11 16 21 26 31

11. Odyssey and GOES Data November 20021 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26 31

12. Odyssey and GOES Data December 20021 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 1 6 11 16 21 26 31

13. Odyssey and GOES Data January 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26 31

14. Odyssey and GOES Data February 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26

15. Odyssey and GOES Data March 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26 31

16. Odyssey and GOES Data April 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26 31

17. Odyssey and GOES Data May 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 1 6 11 16 21 26 31

18. Odyssey and GOES Data June 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 10 6 11 16 21 26 31

19. Odyssey and GOES Data July 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 1 6 11 16 21 26 31

20. Odyssey and GOES Data August 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

21. Odyssey and GOES Data September 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

22. Odyssey and GOES Data October 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

23. Odyssey and GOES Data November 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

24. Odyssey and GOES Data December 20031 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

25. Odyssey and GOES Data January 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

26. Odyssey and GOES Data February 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

27. Odyssey and GOES Data March 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

28. Odyssey and GOES Data April 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

29. Odyssey and GOES Data May 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

30. Odyssey and GOES Data June 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

31. Odyssey and GOES Data July 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

32. Odyssey and GOES Data August 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

33. Odyssey and GOES Data September 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

34. Odyssey and GOES Data October 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

35. Odyssey and GOES Data November 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

36. Odyssey and GOES Data December 20041 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

37. Odyssey and GOES Data January 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

38. Odyssey and GOES Data February 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

39. Odyssey and GOES Data March 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

40. Odyssey and GOES Data April 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

41. Odyssey and GOES Data May 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

42. Odyssey and GOES Data June 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

43. Odyssey and GOES Data July 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

44. Odyssey and GOES Data August 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

45. Odyssey and GOES Data September 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

46. Odyssey and GOES Data October 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

47. Odyssey and GOES Data November 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31

48. Odyssey and GOES Data December 20051 .1 10
100
10-2
10-1
1.0
101
102
103
104
Counts
Particles/cm2 sec sr
Odyssey
GOES 11 6 11 16 21 26 31