../ dmsp_15_ephemeris_20220507.txt 22-Jun-2023 00:51 109701 dmsp_16_ephemeris_20220507.txt 22-Jun-2023 00:51 109633 dmsp_17_ephemeris_20220507.txt 22-Jun-2023 00:51 109669 dmsp_18_ephemeris_20220507.txt 22-Jun-2023 00:51 109644