../ dmsp_15_ephemeris_20130715.txt 22-Jun-2023 00:22 109478 dmsp_16_ephemeris_20130715.txt 22-Jun-2023 00:22 109547 dmsp_17_ephemeris_20130715.txt 22-Jun-2023 00:22 109649 dmsp_18_ephemeris_20130715.txt 22-Jun-2023 00:22 109473