../ dmsp_15_ephemeris_20220607.txt 22-Jun-2023 00:51 109660 dmsp_16_ephemeris_20220607.txt 22-Jun-2023 00:51 109598 dmsp_17_ephemeris_20220607.txt 22-Jun-2023 00:51 109537 dmsp_18_ephemeris_20220607.txt 22-Jun-2023 00:51 109576