../ dmsp_15_ephemeris_20220228.txt 22-Jun-2023 16:31 108028 dmsp_16_ephemeris_20220228.txt 22-Jun-2023 16:31 108089 dmsp_17_ephemeris_20220228.txt 22-Jun-2023 16:31 108154 dmsp_18_ephemeris_20220228.txt 22-Jun-2023 16:31 108061