../ dmsp_15_ephemeris_20200927.txt 22-Jun-2023 00:45 109602 dmsp_16_ephemeris_20200927.txt 22-Jun-2023 00:45 109572 dmsp_17_ephemeris_20200927.txt 22-Jun-2023 00:45 109626 dmsp_18_ephemeris_20200927.txt 22-Jun-2023 00:45 109495