../ dmsp_15_ephemeris_20150726.txt 22-Jun-2023 00:28 109523 dmsp_16_ephemeris_20150726.txt 22-Jun-2023 00:28 109525 dmsp_17_ephemeris_20150726.txt 22-Jun-2023 00:28 109683 dmsp_18_ephemeris_20150726.txt 22-Jun-2023 00:28 109507 dmsp_19_ephemeris_20150726.txt 22-Jun-2023 00:28 109643