../ dmsp_15_ephemeris_20220629.txt 22-Jun-2023 00:51 109571 dmsp_16_ephemeris_20220629.txt 22-Jun-2023 00:51 109625 dmsp_17_ephemeris_20220629.txt 22-Jun-2023 00:51 109601 dmsp_18_ephemeris_20220629.txt 22-Jun-2023 00:51 109405