../ dmsp_15_ephemeris_20171008.txt 22-Jun-2023 16:26 109530 dmsp_16_ephemeris_20171008.txt 22-Jun-2023 16:26 109626 dmsp_17_ephemeris_20171008.txt 22-Jun-2023 16:26 109686 dmsp_18_ephemeris_20171008.txt 22-Jun-2023 16:26 109481