../ dmsp_15_ephemeris_20150718.txt 22-Jun-2023 00:28 109501 dmsp_16_ephemeris_20150718.txt 22-Jun-2023 00:28 109629 dmsp_17_ephemeris_20150718.txt 22-Jun-2023 00:28 109580 dmsp_18_ephemeris_20150718.txt 22-Jun-2023 00:28 109552 dmsp_19_ephemeris_20150718.txt 22-Jun-2023 00:28 109642