../ dmsp_15_ephemeris_20180209.txt 22-Jun-2023 00:36 108103 dmsp_16_ephemeris_20180209.txt 22-Jun-2023 00:36 108093 dmsp_17_ephemeris_20180209.txt 22-Jun-2023 00:36 107977 dmsp_18_ephemeris_20180209.txt 22-Jun-2023 00:36 107983