../ dmsp_15_ephemeris_20150228.txt 22-Jun-2023 16:41 108240 dmsp_16_ephemeris_20150228.txt 22-Jun-2023 16:41 108091 dmsp_17_ephemeris_20150228.txt 22-Jun-2023 16:41 108039 dmsp_18_ephemeris_20150228.txt 22-Jun-2023 16:41 108145 dmsp_19_ephemeris_20150228.txt 22-Jun-2023 16:41 108181