../ dmsp_15_ephemeris_20190119.txt 22-Jun-2023 00:39 108092 dmsp_16_ephemeris_20190119.txt 22-Jun-2023 00:39 108036 dmsp_17_ephemeris_20190119.txt 22-Jun-2023 00:39 107971 dmsp_18_ephemeris_20190119.txt 22-Jun-2023 00:39 107847