../ dmsp_15_ephemeris_20150723.txt 22-Jun-2023 16:16 109509 dmsp_16_ephemeris_20150723.txt 22-Jun-2023 16:16 109322 dmsp_17_ephemeris_20150723.txt 22-Jun-2023 16:16 109524 dmsp_18_ephemeris_20150723.txt 22-Jun-2023 16:16 109673 dmsp_19_ephemeris_20150723.txt 22-Jun-2023 16:16 109650