../ dmsp_15_ephemeris_20220825.txt 22-Jun-2023 00:52 109617 dmsp_16_ephemeris_20220825.txt 22-Jun-2023 00:52 109666 dmsp_17_ephemeris_20220825.txt 22-Jun-2023 00:52 109550 dmsp_18_ephemeris_20220825.txt 22-Jun-2023 00:52 109667