COSPIN/LET - User Notes COSPIN/LET Contact: Dr. Trevor R. Sanderson Space Science Department of ESA, ESTEC Postbus 299 2200 AG Noordwijk The Netherlands Phone: (31) 71 565 3577 Telefax: (31) 71 565 4697 E-mail: tsanders@estec.esa.nl RECORD FORMAT: IMPLICIT REAL(L) DIMENSION L4_11(8),L13_20(8),L34_38(5) C FREE FORMAT READ(1,*)IYEAR,IDOY,IHOUR,IMIN,ISEC, . L1,L2,L3,L4_11,L12,L13_20,L21, . L22,L23,L24,L25, . L26,L27,L28,L29,L30,L31,L32,L33,L34_38 C FIXED FORMAT READ(1,100)IYEAR,IDOY,IHOUR,IMIN,ISEC, . L1,L2,L3,L4_11,L12,L13_20,L21, . L22,L23,L24,L25, . L26,L27,L28,L29,L30,L31,L32,L33,L34_38 100 FORMAT(I5,X,I3,3(X,I2),38(X,G9.3)) PARAMETER LIST: IYEAR: year IDOY: day of year IHOUR: hour IMIN: minute ISEC: second L1: protons (0.9-1.2 MeV) L2: " (1.2-3.0 MeV) L3: " (1.8-3.8 MeV) L4_11: " " sectors 1 to 8 L12: " (3.8-8.0 MeV) L13_20: " " sectors 1 to 8 L21: " (8.0-19.0 MeV) L22: alphas (1.0-5.0 MeV/n) L23: " (1.9-3.7 MeV/n) L24: " (3.7-8.4 MeV/n) L25: " (8.4-19.0 MeV/n) L26 Li,Be,B (1.9-4.9 MeV/n) L27 " (4.9-26 MeV/n) L28 C,N,O (2.6-7.1 MeV/n) L29 " (7.1-39.0 MeV/n) L30 Z>=10 (3.0-9.0 MeV/n) L31 10<=Z<=20 (9.0-50 MeV/n) L32 Z>=20 (12.0-75.0 MeV/n) L33 electrons (0.3-1.0 MeV) L34_38 single detector counting rates FLUX UNITS: (/cm2/s/sr/MeV/nucleon) TIME RESOLUTION: 10 minutes NOTES: 1. Please note that a software error in the LET data reduction algorithm means that data in sectored channel L4 should be ignored, and will be corrected at a later date. 2. Rate channel L1 (which nominally responds to protons in the energy range 0.9-1.2 MeV) is derived from a single-detector measurement, and as such is sensitive to penetrating particles which lose part of their energy in the detector. The background contribution depends on the energy spectrum of the incident particle population, being negligible for (differential) energy spectral slopes of -3.5 or steeper, increasing to 80% of the total counts for a slope of -1.0 or harder. 3. Rate channel L21 (which nominally responds to protons in the energy range 9-19 MeV) is also sensitive to higher-energy particles which lose part of their energy in the telescope structure. As in the case of L1, the background contribution depends on the energy spectrum of the incident particle population, being negligible for (differential) energy spectral slopes of -2.0 or steeper, increasing to 80% of the total counts for a slope of +0.75 or harder. (For further information, contact Dr. T.R. Sanderson, tsanders@estec.esa.nl) PHA Derived H and He Fluxes IYEAR: year IDOY: day of year IHOUR: hour of day E1: 2-4 MeV Protons (/cm2/s/sr/MeV) EE1: Error in E1 " E2: 4-6 MeV Protons (/cm2/s/sr/MeV) EE2: Error in E2 " E3: 6-8 MeV Protons (/cm2/s/sr/MeV) EE3: Error in E3 " E4: 8-16 MeV Protons (/cm2/s/sr/MeV) EE4: Error in E4 " E5: 16-20 MeV Protons (/cm2/s/sr/MeV) EE5: Error in E5 " H1: 4-6 MeV/n Helium (/cm2/s/sr/MeV/n) EH1: Error in H1 " H2: 6-9 MeV/n Helium (/cm2/s/sr/MeV/n) EH2: Error in H2 " H3: 11-20 Mev/n Helium (/cm2/s/sr/MeV/n) EH3: Error in H3 " TIME RESOLUTION: daily PHA Derived O, N and Ne Fluxes IYEAR: year IDOY: day of year IHOUR: hour of day O1: 4-8 MeV/n Oxygen (/cm2/s/sr/MeV/n) EO1: Error in O1 " O2: 8-12 MeV/n Oxygen (/cm2/s/sr/MeV/n) EO2: Error in O2 " O3: 12-16 MeV/n Oxygen (/cm2/s/sr/MeV/n) EO3: Error in O3 " O4: 16-20 MeV/n Oxygen (/cm2/s/sr/MeV/n) EO4: Error in O4 " N1: 4-7 MeV/n Nitrogen (/cm2/s/sr/MeV/n) EN1: Error in N1 " N2: 8-20 MeV/n Nitrogen (/cm2/s/sr/MeV/n) EN2: Error in N2 " Ne1: 4-8 MeV/n Neon (/cm2/s/sr/MeV/n) ENe1: Error in Ne1 " Ne2: 9-30 MeV/n Neon (/cm2/s/sr/MeV/n) ENe2: Error in Ne2 " TIME RESOLUTION: 20 days [ COSPIN LET Index ]