../ dmsp_15_ephemeris_20200915.txt 22-Jun-2023 00:45 109701 dmsp_16_ephemeris_20200915.txt 22-Jun-2023 00:45 109658 dmsp_17_ephemeris_20200915.txt 22-Jun-2023 00:45 109696 dmsp_18_ephemeris_20200915.txt 22-Jun-2023 00:45 109633