../ dmsp_15_ephemeris_20220909.txt 22-Jun-2023 00:52 109704 dmsp_16_ephemeris_20220909.txt 22-Jun-2023 00:52 109729 dmsp_17_ephemeris_20220909.txt 22-Jun-2023 00:52 109596 dmsp_18_ephemeris_20220909.txt 22-Jun-2023 00:52 109668