../ dmsp_15_ephemeris_20150812.txt 22-Jun-2023 00:28 109564 dmsp_16_ephemeris_20150812.txt 22-Jun-2023 00:28 109671 dmsp_17_ephemeris_20150812.txt 22-Jun-2023 00:28 109695 dmsp_18_ephemeris_20150812.txt 22-Jun-2023 00:28 109718 dmsp_19_ephemeris_20150812.txt 22-Jun-2023 00:28 109645