../ dmsp_15_ephemeris_20221009.txt 22-Jun-2023 00:53 109594 dmsp_16_ephemeris_20221009.txt 22-Jun-2023 00:53 109539 dmsp_17_ephemeris_20221009.txt 22-Jun-2023 00:53 109473 dmsp_18_ephemeris_20221009.txt 22-Jun-2023 00:53 109627