../ dmsp_15_ephemeris_20111023.txt 22-Jun-2023 16:12 109480 dmsp_16_ephemeris_20111023.txt 22-Jun-2023 16:12 109497 dmsp_17_ephemeris_20111023.txt 22-Jun-2023 16:12 109490 dmsp_18_ephemeris_20111023.txt 22-Jun-2023 16:12 109636