../ dmsp_15_ephemeris_20200414.txt 22-Jun-2023 16:33 109702 dmsp_16_ephemeris_20200414.txt 22-Jun-2023 16:33 109628 dmsp_17_ephemeris_20200414.txt 22-Jun-2023 16:33 109611 dmsp_18_ephemeris_20200414.txt 22-Jun-2023 16:33 109621