../ dmsp_15_ephemeris_20221124.txt 22-Jun-2023 00:53 109294 dmsp_16_ephemeris_20221124.txt 22-Jun-2023 00:53 109317 dmsp_17_ephemeris_20221124.txt 22-Jun-2023 00:53 109380 dmsp_18_ephemeris_20221124.txt 22-Jun-2023 00:53 109426