../ dmsp_15_ephemeris_20150509.txt 22-Jun-2023 00:28 109559 dmsp_16_ephemeris_20150509.txt 22-Jun-2023 00:28 109607 dmsp_17_ephemeris_20150509.txt 22-Jun-2023 00:28 109734 dmsp_18_ephemeris_20150509.txt 22-Jun-2023 00:28 109483 dmsp_19_ephemeris_20150509.txt 22-Jun-2023 00:28 109594