../ dmsp_15_ephemeris_20150816.txt 22-Jun-2023 00:28 109485 dmsp_16_ephemeris_20150816.txt 22-Jun-2023 00:28 109557 dmsp_17_ephemeris_20150816.txt 22-Jun-2023 00:28 109696 dmsp_18_ephemeris_20150816.txt 22-Jun-2023 00:28 109712 dmsp_19_ephemeris_20150816.txt 22-Jun-2023 00:28 109615