../ dmsp_15_ephemeris_20210125.txt 22-Jun-2023 00:46 108085 dmsp_16_ephemeris_20210125.txt 22-Jun-2023 00:46 108063 dmsp_17_ephemeris_20210125.txt 22-Jun-2023 00:46 107930 dmsp_18_ephemeris_20210125.txt 22-Jun-2023 00:46 107843