../ dmsp_15_ephemeris_20210107.txt 22-Jun-2023 16:34 106485 dmsp_16_ephemeris_20210107.txt 22-Jun-2023 16:34 106478 dmsp_17_ephemeris_20210107.txt 22-Jun-2023 16:34 106462 dmsp_18_ephemeris_20210107.txt 22-Jun-2023 16:34 106430