../ dmsp_15_ephemeris_20150526.txt 22-Jun-2023 00:28 109524 dmsp_16_ephemeris_20150526.txt 22-Jun-2023 00:28 109503 dmsp_17_ephemeris_20150526.txt 22-Jun-2023 00:28 109624 dmsp_18_ephemeris_20150526.txt 22-Jun-2023 00:28 109576 dmsp_19_ephemeris_20150526.txt 22-Jun-2023 00:28 109743