../ dmsp_15_ephemeris_20131003.txt 22-Jun-2023 16:36 109569 dmsp_16_ephemeris_20131003.txt 22-Jun-2023 16:36 109647 dmsp_17_ephemeris_20131003.txt 22-Jun-2023 16:36 109686 dmsp_18_ephemeris_20131003.txt 22-Jun-2023 16:36 109634