../ dmsp_15_ephemeris_20211005.txt 22-Jun-2023 17:04 109533 dmsp_16_ephemeris_20211005.txt 22-Jun-2023 17:04 109616 dmsp_17_ephemeris_20211005.txt 22-Jun-2023 17:04 109631 dmsp_18_ephemeris_20211005.txt 22-Jun-2023 17:04 109600