../ dmsp_15_ephemeris_20220703.txt 22-Jun-2023 00:52 109563 dmsp_16_ephemeris_20220703.txt 22-Jun-2023 00:52 109568 dmsp_17_ephemeris_20220703.txt 22-Jun-2023 00:52 109650 dmsp_18_ephemeris_20220703.txt 22-Jun-2023 00:52 109537