../ dmsp_15_ephemeris_20220916.txt 22-Jun-2023 00:53 109659 dmsp_16_ephemeris_20220916.txt 22-Jun-2023 00:53 109730 dmsp_17_ephemeris_20220916.txt 22-Jun-2023 00:53 109586 dmsp_18_ephemeris_20220916.txt 22-Jun-2023 00:53 109617