../ dmsp_15_ephemeris_20131027.txt 22-Jun-2023 00:23 109566 dmsp_16_ephemeris_20131027.txt 22-Jun-2023 00:23 109433 dmsp_17_ephemeris_20131027.txt 22-Jun-2023 00:23 109544 dmsp_18_ephemeris_20131027.txt 22-Jun-2023 00:23 109506