../ dmsp_15_ephemeris_20170211.txt 22-Jun-2023 00:33 108011 dmsp_16_ephemeris_20170211.txt 22-Jun-2023 00:33 108076 dmsp_17_ephemeris_20170211.txt 22-Jun-2023 00:33 108022 dmsp_18_ephemeris_20170211.txt 22-Jun-2023 00:33 107941