../ dmsp_15_ephemeris_20220923.txt 22-Jun-2023 00:53 109651 dmsp_16_ephemeris_20220923.txt 22-Jun-2023 00:53 109595 dmsp_17_ephemeris_20220923.txt 22-Jun-2023 00:53 109629 dmsp_18_ephemeris_20220923.txt 22-Jun-2023 00:53 109688