../ dmsp_15_ephemeris_20200111.txt 22-Jun-2023 00:42 107896 dmsp_16_ephemeris_20200111.txt 22-Jun-2023 00:42 107948 dmsp_17_ephemeris_20200111.txt 22-Jun-2023 00:42 107801 dmsp_18_ephemeris_20200111.txt 22-Jun-2023 00:42 107860