../ dmsp_15_ephemeris_20221007.txt 22-Jun-2023 00:53 109604 dmsp_16_ephemeris_20221007.txt 22-Jun-2023 00:53 109581 dmsp_17_ephemeris_20221007.txt 22-Jun-2023 00:53 109656 dmsp_18_ephemeris_20221007.txt 22-Jun-2023 00:53 109571