../ dmsp_15_ephemeris_20220506.txt 22-Jun-2023 00:51 109669 dmsp_16_ephemeris_20220506.txt 22-Jun-2023 00:51 109542 dmsp_17_ephemeris_20220506.txt 22-Jun-2023 00:51 109639 dmsp_18_ephemeris_20220506.txt 22-Jun-2023 00:51 109551