../ dmsp_15_ephemeris_20190106.txt 22-Jun-2023 00:39 106572 dmsp_16_ephemeris_20190106.txt 22-Jun-2023 00:39 106484 dmsp_17_ephemeris_20190106.txt 22-Jun-2023 00:39 106412 dmsp_18_ephemeris_20190106.txt 22-Jun-2023 00:39 106534