../ dmsp_15_ephemeris_20220724.txt 22-Jun-2023 00:52 109566 dmsp_16_ephemeris_20220724.txt 22-Jun-2023 00:52 109600 dmsp_17_ephemeris_20220724.txt 22-Jun-2023 00:52 109664 dmsp_18_ephemeris_20220724.txt 22-Jun-2023 00:52 109621