../ dmsp_15_ephemeris_20130607.txt 22-Jun-2023 00:22 109588 dmsp_16_ephemeris_20130607.txt 22-Jun-2023 00:22 109517 dmsp_17_ephemeris_20130607.txt 22-Jun-2023 00:22 109606 dmsp_18_ephemeris_20130607.txt 22-Jun-2023 00:22 109572