../ dmsp_15_ephemeris_20200928.txt 22-Jun-2023 00:45 109695 dmsp_16_ephemeris_20200928.txt 22-Jun-2023 00:45 109727 dmsp_17_ephemeris_20200928.txt 22-Jun-2023 00:45 109635 dmsp_18_ephemeris_20200928.txt 22-Jun-2023 00:45 109645