../ dmsp_15_ephemeris_20200524.txt 22-Jun-2023 00:44 109429 dmsp_16_ephemeris_20200524.txt 22-Jun-2023 00:44 109544 dmsp_17_ephemeris_20200524.txt 22-Jun-2023 00:44 109635 dmsp_18_ephemeris_20200524.txt 22-Jun-2023 00:44 109520