../ dmsp_15_ephemeris_20220613.txt 22-Jun-2023 16:38 109602 dmsp_16_ephemeris_20220613.txt 22-Jun-2023 16:38 109459 dmsp_17_ephemeris_20220613.txt 22-Jun-2023 16:38 109626 dmsp_18_ephemeris_20220613.txt 22-Jun-2023 16:38 109534