NASA Ocean Color

ocssw V2022

 #include <stdio.h>
 #include <stdint.h>
 #include <timeutils.h>
  
 int ccsds_to_yds(uint8_t *cctime,
         int32_t *iyear, int32_t *iday, double *sec) {
  
     // Convert CCSDS time code to year, day-of-year and seconds-of-day
     *iday = cctime[0]*256 + cctime[1];
     int32_t jday = *iday + 2436205; // Jan. 1, 1958 is Julian day 2436205
     jdate(jday, iyear, iday);
  
     // Get milliseconds of day count
     int32_t msec = ((cctime[2]*256 + cctime[3])*256 + cctime[4])*256 + cctime[5];
  
     // Get microseconds
     int32_t musec = cctime[6]*256 + cctime[7];
  
     *sec = msec / (double) 1000.0 + musec / (double) 1.e6;
  
     return 0;
 }

msec

int32 * msec

Definition: l1_czcs_hdf.c:31

jdate

int jdate(int32_t julian, int32_t *year, int32_t *doy)

Takes in a julian day and mutates year and doy to contain the gregorian year and day of that gregoria...

Definition: jdate.c:13

jday

int32_t jday(int16_t i, int16_t j, int16_t k)

Converts a calendar date to the corresponding Julian day starting at noon on the calendar date....

Definition: jday.c:14

ccsds_to_yds

int ccsds_to_yds(uint8_t *cctime, int32_t *iyear, int32_t *iday, double *sec)

Definition: ccsds_to_yds.c:5

generalauxtype::double

integer, parameter double

Definition: GeneralAuxType.f90:27

timeutils.h