../ dmsp_15_ephemeris_20150928.txt 22-Jun-2023 00:29 109675 dmsp_16_ephemeris_20150928.txt 22-Jun-2023 00:29 109712 dmsp_17_ephemeris_20150928.txt 22-Jun-2023 00:29 109613 dmsp_18_ephemeris_20150928.txt 22-Jun-2023 00:29 109674 dmsp_19_ephemeris_20150928.txt 22-Jun-2023 00:29 109762