../ dmsp_15_ephemeris_20220916.txt 22-Jun-2023 16:39 109659 dmsp_16_ephemeris_20220916.txt 22-Jun-2023 16:39 109730 dmsp_17_ephemeris_20220916.txt 22-Jun-2023 16:39 109586 dmsp_18_ephemeris_20220916.txt 22-Jun-2023 16:39 109617