../ dmsp_15_ephemeris_20221130.txt 22-Jun-2023 00:53 109220 dmsp_16_ephemeris_20221130.txt 22-Jun-2023 00:53 109191 dmsp_17_ephemeris_20221130.txt 22-Jun-2023 00:53 109229 dmsp_18_ephemeris_20221130.txt 22-Jun-2023 00:53 109362