../ dmsp_15_ephemeris_20200214.txt 22-Jun-2023 00:43 108193 dmsp_16_ephemeris_20200214.txt 22-Jun-2023 00:43 108140 dmsp_17_ephemeris_20200214.txt 22-Jun-2023 00:43 108002 dmsp_18_ephemeris_20200214.txt 22-Jun-2023 00:43 108004