../ dmsp_15_ephemeris_20220928.txt 22-Jun-2023 16:39 109558 dmsp_16_ephemeris_20220928.txt 22-Jun-2023 16:39 109584 dmsp_17_ephemeris_20220928.txt 22-Jun-2023 16:39 109599 dmsp_18_ephemeris_20220928.txt 22-Jun-2023 16:39 109594