../ dmsp_15_ephemeris_20150711.txt 22-Jun-2023 00:28 109569 dmsp_16_ephemeris_20150711.txt 22-Jun-2023 00:28 109582 dmsp_17_ephemeris_20150711.txt 22-Jun-2023 00:28 109692 dmsp_18_ephemeris_20150711.txt 22-Jun-2023 00:28 109588 dmsp_19_ephemeris_20150711.txt 22-Jun-2023 00:28 109630