../ dmsp_15_ephemeris_20230604.txt 04-Aug-2023 22:00 109650 dmsp_16_ephemeris_20230604.txt 04-Aug-2023 22:00 109568 dmsp_17_ephemeris_20230604.txt 04-Aug-2023 22:00 109631 dmsp_18_ephemeris_20230604.txt 04-Aug-2023 22:00 109471