../ dmsp_15_ephemeris_20200707.txt 22-Jun-2023 17:00 109586 dmsp_16_ephemeris_20200707.txt 22-Jun-2023 17:00 109537 dmsp_17_ephemeris_20200707.txt 22-Jun-2023 17:00 109613 dmsp_18_ephemeris_20200707.txt 22-Jun-2023 17:00 109520