../ dmsp_15_ephemeris_20200117.txt 22-Jun-2023 00:42 108042 dmsp_16_ephemeris_20200117.txt 22-Jun-2023 00:42 108021 dmsp_17_ephemeris_20200117.txt 22-Jun-2023 00:42 107967 dmsp_18_ephemeris_20200117.txt 22-Jun-2023 00:42 107909