../ dmsp_15_ephemeris_20170707.txt 22-Jun-2023 16:26 109458 dmsp_16_ephemeris_20170707.txt 22-Jun-2023 16:26 109599 dmsp_17_ephemeris_20170707.txt 22-Jun-2023 16:26 109629 dmsp_18_ephemeris_20170707.txt 22-Jun-2023 16:26 109507