../ dmsp_15_ephemeris_20221118.txt 22-Jun-2023 00:53 109430 dmsp_16_ephemeris_20221118.txt 22-Jun-2023 00:53 109317 dmsp_17_ephemeris_20221118.txt 22-Jun-2023 00:53 109316 dmsp_18_ephemeris_20221118.txt 22-Jun-2023 00:53 109349