../ dmsp_15_ephemeris_20150509.txt 22-Jun-2023 16:16 109559 dmsp_16_ephemeris_20150509.txt 22-Jun-2023 16:16 109607 dmsp_17_ephemeris_20150509.txt 22-Jun-2023 16:16 109734 dmsp_18_ephemeris_20150509.txt 22-Jun-2023 16:16 109483 dmsp_19_ephemeris_20150509.txt 22-Jun-2023 16:16 109594