../ dmsp_15_ephemeris_20150802.txt 22-Jun-2023 00:28 109500 dmsp_16_ephemeris_20150802.txt 22-Jun-2023 00:28 109531 dmsp_17_ephemeris_20150802.txt 22-Jun-2023 00:28 109645 dmsp_18_ephemeris_20150802.txt 22-Jun-2023 00:28 109570 dmsp_19_ephemeris_20150802.txt 22-Jun-2023 00:28 109657