../ dmsp_15_ephemeris_20170626.txt 22-Jun-2023 16:25 109470 dmsp_16_ephemeris_20170626.txt 22-Jun-2023 16:25 109497 dmsp_17_ephemeris_20170626.txt 22-Jun-2023 16:25 109631 dmsp_18_ephemeris_20170626.txt 22-Jun-2023 16:26 109687