../ dmsp_15_ephemeris_20110613.txt 22-Jun-2023 00:17 109529 dmsp_16_ephemeris_20110613.txt 22-Jun-2023 00:17 109568 dmsp_17_ephemeris_20110613.txt 22-Jun-2023 00:17 109724 dmsp_18_ephemeris_20110613.txt 22-Jun-2023 00:17 109517