../ dmsp_15_ephemeris_20221030.txt 22-Jun-2023 00:53 109436 dmsp_16_ephemeris_20221030.txt 22-Jun-2023 00:53 109423 dmsp_17_ephemeris_20221030.txt 22-Jun-2023 00:53 109404 dmsp_18_ephemeris_20221030.txt 22-Jun-2023 00:53 109596