../ dmsp_15_ephemeris_20150527.txt 22-Jun-2023 00:28 109496 dmsp_16_ephemeris_20150527.txt 22-Jun-2023 00:28 109573 dmsp_17_ephemeris_20150527.txt 22-Jun-2023 00:28 109642 dmsp_18_ephemeris_20150527.txt 22-Jun-2023 00:28 109583 dmsp_19_ephemeris_20150527.txt 22-Jun-2023 00:28 109607