../ dmsp_15_ephemeris_20220204.txt 22-Jun-2023 00:50 108087 dmsp_16_ephemeris_20220204.txt 22-Jun-2023 00:50 108064 dmsp_17_ephemeris_20220204.txt 22-Jun-2023 00:50 107951 dmsp_18_ephemeris_20220204.txt 22-Jun-2023 00:50 108072