../ dmsp_15_ephemeris_20200528.txt 22-Jun-2023 00:44 109690 dmsp_16_ephemeris_20200528.txt 22-Jun-2023 00:44 109452 dmsp_17_ephemeris_20200528.txt 22-Jun-2023 00:44 109631 dmsp_18_ephemeris_20200528.txt 22-Jun-2023 00:44 109616