../ dmsp_15_ephemeris_20220106.txt 22-Jun-2023 00:49 106591 dmsp_16_ephemeris_20220106.txt 22-Jun-2023 00:49 106587 dmsp_17_ephemeris_20220106.txt 22-Jun-2023 00:49 106370 dmsp_18_ephemeris_20220106.txt 22-Jun-2023 00:49 106468