../ dmsp_15_ephemeris_20140121.txt 22-Jun-2023 00:23 108055 dmsp_16_ephemeris_20140121.txt 22-Jun-2023 00:23 107977 dmsp_17_ephemeris_20140121.txt 22-Jun-2023 00:23 107950 dmsp_18_ephemeris_20140121.txt 22-Jun-2023 00:23 107932