../ dmsp_15_ephemeris_20150915.txt 22-Jun-2023 16:43 109612 dmsp_16_ephemeris_20150915.txt 22-Jun-2023 16:43 109608 dmsp_17_ephemeris_20150915.txt 22-Jun-2023 16:43 109630 dmsp_18_ephemeris_20150915.txt 22-Jun-2023 16:43 109628 dmsp_19_ephemeris_20150915.txt 22-Jun-2023 16:43 109624