../ dmsp_15_ephemeris_20121028.txt 22-Jun-2023 16:33 109444 dmsp_16_ephemeris_20121028.txt 22-Jun-2023 16:33 109505 dmsp_17_ephemeris_20121028.txt 22-Jun-2023 16:33 109474 dmsp_18_ephemeris_20121028.txt 22-Jun-2023 16:33 109561