../ dmsp_15_ephemeris_20130603.txt 22-Jun-2023 16:11 109449 dmsp_16_ephemeris_20130603.txt 22-Jun-2023 16:11 109673 dmsp_17_ephemeris_20130603.txt 22-Jun-2023 16:11 109686 dmsp_18_ephemeris_20130603.txt 22-Jun-2023 16:11 109642