../ dmsp_15_ephemeris_20200909.txt 22-Jun-2023 00:45 109725 dmsp_16_ephemeris_20200909.txt 22-Jun-2023 00:45 109591 dmsp_17_ephemeris_20200909.txt 22-Jun-2023 00:45 109628 dmsp_18_ephemeris_20200909.txt 22-Jun-2023 00:45 109635