../ dmsp_15_ephemeris_20120128.txt 22-Jun-2023 00:19 107970 dmsp_16_ephemeris_20120128.txt 22-Jun-2023 00:19 108028 dmsp_17_ephemeris_20120128.txt 22-Jun-2023 00:19 107933 dmsp_18_ephemeris_20120128.txt 22-Jun-2023 00:19 108163