Start time (UTC): 1 January 1996 00:00:00 - IN-FLIGHT, 75 KM BASELINE - SSO, 32/503 REPEAT WITH 4 & 7-DAY sub-CYCLES - 6/18 HR LOCAL TIME AT EQUATOR CROSSINGS Inertial rectangular coordinates and osculating Keplerian elements: positions and velocities are in METERS and METERS/SECOND, while the Keplerian elements are: A E I RA ASC NODE ARG PERIGEE MEAN ANOMALY (METERS) (DEGREES) (DEGREES) (DEGREES) (DEGREES) SAT1 X,Y,Z POSITION 0.66229859865818e+07 0.11700966865700e+07 -.10656068376968e+05 SAT1 X,Y,Z VELOCITY 0.16566454678989e+03 -.90315647012142e+03 0.76490667877446e+04 KEPLER 6735206.7965 0.001636983943 96.845104817 10.008277796 28.934541202 331.064946643 SAT2 X,Y,Z POSITION 0.66241903042749e+07 0.11612081752972e+07 0.63896412726384e+05 SAT2 X,Y,Z VELOCITY 0.80949467365173e+02 -.91806347802553e+03 0.76487256761965e+04 KEPLER 6735205.8971 0.001644740642 96.845094438 10.008165446 29.437449035 331.201769141 Simulation duration: 3283260 s (38 days + 60 s) Printing time interval: 3196800 s (37 days + 60 s) Final printing time interval (after "post-facto"): 3196800 s (37 days) Static gravity field degree: 50 The simulation starts with the date specified above, but the printing starts 1 day later (86400 s later) to exclude the transient effects of the drag free, formation, attitude and pointing control. Attitude control, formation control, drag free control and pointing control were active. The accelerometer noises were active. The effects of misalignment, coupling and scale factors were disabled. The variables of some files have been filtered to remove the aliasing introduced by the undersampling when printing at 1 Hz. The filter used is a 7th-order Butterworth filter working at 10 Hz with a cutoff frequency of 0.2 Hz. Files starting with "inline_SSO_37days_file3..." contain the true quaternion values, the reconstituted attitude measurements, the reconstituted angular velocities and the reconstituted angular accelerations obtained with the "post-facto" module, which performs a "data fusion" between star tracker measurements and accelerometer measurements. The first and the last 30 points have been removed to exclude border effects caused by the inverse filter used for the rephasing of the signal. The other files have been trimmed accordingly. The output files (ASCII format) are: - inline_SSO_37days_file1.dat (filtered variables) - inline_SSO_37days_file2a_1.dat (filtered variables) - inline_SSO_37days_file2a_2.dat (filtered variables) - inline_SSO_37days_file2b_1.dat (filtered variables) - inline_SSO_37days_file2b_2.dat (filtered variables) - inline_SSO_37days_file3_1_ECF.dat - inline_SSO_37days_file3_1_ECI.dat - inline_SSO_37days_file3_2_ECF.dat - inline_SSO_37days_file3_2_ECI.dat - inline_SSO_37days_file4_1.dat - inline_SSO_37days_file4_2.dat The name of the variables are specified in the files: - Hinline_SSO_37days_file1.dat - Hinline_SSO_37days_file2a_1.dat - Hinline_SSO_37days_file2a_2.dat - Hinline_SSO_37days_file2b_1.dat - Hinline_SSO_37days_file2b_2.dat - Hinline_SSO_37days_file3_1_ECF.dat - Hinline_SSO_37days_file3_1_ECI.dat - Hinline_SSO_37days_file3_2_ECF.dat - Hinline_SSO_37days_file3_2_ECI.dat - Hinline_SSO_37days_file4_1.dat - Hinline_SSO_37days_file4_2.dat The files are inside the compressed archive "inline_SSO_37days_09072010.tgz". To extract the files use the following command: $ tar -xzf inline_SSO_37days_09072010.tgz Date: 09/07/2010