../ dmsp_15_ephemeris_20130105.txt 22-Jun-2023 00:21 106509 dmsp_16_ephemeris_20130105.txt 22-Jun-2023 00:21 106490 dmsp_17_ephemeris_20130105.txt 22-Jun-2023 00:21 106479 dmsp_18_ephemeris_20130105.txt 22-Jun-2023 00:21 106406