../ dmsp_15_ephemeris_20180205.txt 22-Jun-2023 00:36 108090 dmsp_16_ephemeris_20180205.txt 22-Jun-2023 00:36 108026 dmsp_17_ephemeris_20180205.txt 22-Jun-2023 00:36 107949 dmsp_18_ephemeris_20180205.txt 22-Jun-2023 00:36 108045