../ dmsp_15_ephemeris_20210106.txt 22-Jun-2023 00:46 106547 dmsp_16_ephemeris_20210106.txt 22-Jun-2023 00:46 106593 dmsp_17_ephemeris_20210106.txt 22-Jun-2023 00:46 106477 dmsp_18_ephemeris_20210106.txt 22-Jun-2023 00:46 106430