../ dmsp_15_ephemeris_20230308.txt 22-Jun-2023 00:55 108044 dmsp_16_ephemeris_20230308.txt 22-Jun-2023 00:55 108210 dmsp_17_ephemeris_20230308.txt 22-Jun-2023 00:55 108036 dmsp_18_ephemeris_20230308.txt 22-Jun-2023 00:55 108190