../ dmsp_15_ephemeris_20200626.txt 22-Jun-2023 00:44 109495 dmsp_16_ephemeris_20200626.txt 22-Jun-2023 00:44 109503 dmsp_17_ephemeris_20200626.txt 22-Jun-2023 00:44 109709 dmsp_18_ephemeris_20200626.txt 22-Jun-2023 00:44 109497