../ dmsp_15_ephemeris_20130116.txt 22-Jun-2023 00:21 107991 dmsp_16_ephemeris_20130116.txt 22-Jun-2023 00:21 107804 dmsp_17_ephemeris_20130116.txt 22-Jun-2023 00:21 107812 dmsp_18_ephemeris_20130116.txt 22-Jun-2023 00:21 108019