../ dmsp_15_ephemeris_20131226.txt 22-Jun-2023 00:23 109392 dmsp_16_ephemeris_20131226.txt 22-Jun-2023 00:23 109437 dmsp_17_ephemeris_20131226.txt 22-Jun-2023 00:23 109294 dmsp_18_ephemeris_20131226.txt 22-Jun-2023 00:23 109358