../ dmsp_15_ephemeris_20180627.txt 22-Jun-2023 16:53 109569 dmsp_16_ephemeris_20180627.txt 22-Jun-2023 16:53 109598 dmsp_17_ephemeris_20180627.txt 22-Jun-2023 16:53 109681 dmsp_18_ephemeris_20180627.txt 22-Jun-2023 16:53 109627