../ dmsp_15_ephemeris_20220908.txt 22-Jun-2023 00:52 109651 dmsp_16_ephemeris_20220908.txt 22-Jun-2023 00:52 109648 dmsp_17_ephemeris_20220908.txt 22-Jun-2023 00:52 109626 dmsp_18_ephemeris_20220908.txt 22-Jun-2023 00:52 109683