../ dmsp_15_ephemeris_20181028.txt 22-Jun-2023 16:29 109613 dmsp_16_ephemeris_20181028.txt 22-Jun-2023 16:29 109518 dmsp_17_ephemeris_20181028.txt 22-Jun-2023 16:29 109498 dmsp_18_ephemeris_20181028.txt 22-Jun-2023 16:29 109386