../ dmsp_15_ephemeris_20111023.txt 22-Jun-2023 00:18 109480 dmsp_16_ephemeris_20111023.txt 22-Jun-2023 00:18 109497 dmsp_17_ephemeris_20111023.txt 22-Jun-2023 00:18 109490 dmsp_18_ephemeris_20111023.txt 22-Jun-2023 00:18 109636