../ dmsp_15_ephemeris_20180103.txt 22-Jun-2023 00:36 106468 dmsp_16_ephemeris_20180103.txt 22-Jun-2023 00:36 106484 dmsp_17_ephemeris_20180103.txt 22-Jun-2023 00:36 106432 dmsp_18_ephemeris_20180103.txt 22-Jun-2023 00:36 106388