../ dmsp_15_ephemeris_20221113.txt 22-Jun-2023 00:53 109472 dmsp_16_ephemeris_20221113.txt 22-Jun-2023 00:53 109479 dmsp_17_ephemeris_20221113.txt 22-Jun-2023 00:53 109367 dmsp_18_ephemeris_20221113.txt 22-Jun-2023 00:53 109413