../ dmsp_15_ephemeris_20210125.txt 22-Jun-2023 17:01 108085 dmsp_16_ephemeris_20210125.txt 22-Jun-2023 17:01 108063 dmsp_17_ephemeris_20210125.txt 22-Jun-2023 17:01 107930 dmsp_18_ephemeris_20210125.txt 22-Jun-2023 17:01 107843