../ dmsp_15_ephemeris_20150817.txt 22-Jun-2023 00:28 109535 dmsp_16_ephemeris_20150817.txt 22-Jun-2023 00:28 109555 dmsp_17_ephemeris_20150817.txt 22-Jun-2023 00:28 109743 dmsp_18_ephemeris_20150817.txt 22-Jun-2023 00:28 109696 dmsp_19_ephemeris_20150817.txt 22-Jun-2023 00:28 109731