../ dmsp_15_ephemeris_20221016.txt 22-Jun-2023 00:53 109538 dmsp_16_ephemeris_20221016.txt 22-Jun-2023 00:53 109551 dmsp_17_ephemeris_20221016.txt 22-Jun-2023 00:53 109505 dmsp_18_ephemeris_20221016.txt 22-Jun-2023 00:53 109589