../ dmsp_15_ephemeris_20220813.txt 22-Jun-2023 00:52 109616 dmsp_16_ephemeris_20220813.txt 22-Jun-2023 00:52 109584 dmsp_17_ephemeris_20220813.txt 22-Jun-2023 00:52 109605 dmsp_18_ephemeris_20220813.txt 22-Jun-2023 00:52 109647