../ dmsp_15_ephemeris_20220209.txt 22-Jun-2023 00:50 108118 dmsp_16_ephemeris_20220209.txt 22-Jun-2023 00:50 108168 dmsp_17_ephemeris_20220209.txt 22-Jun-2023 00:50 108006 dmsp_18_ephemeris_20220209.txt 22-Jun-2023 00:50 107974