../ dmsp_15_ephemeris_20150530.txt 22-Jun-2023 16:19 109540 dmsp_16_ephemeris_20150530.txt 22-Jun-2023 16:19 109460 dmsp_17_ephemeris_20150530.txt 22-Jun-2023 16:19 109573 dmsp_18_ephemeris_20150530.txt 22-Jun-2023 16:19 109636 dmsp_19_ephemeris_20150530.txt 22-Jun-2023 16:19 109655