../ dmsp_15_ephemeris_20220123.txt 22-Jun-2023 00:49 107849 dmsp_16_ephemeris_20220123.txt 22-Jun-2023 00:49 108051 dmsp_17_ephemeris_20220123.txt 22-Jun-2023 00:49 107774 dmsp_18_ephemeris_20220123.txt 22-Jun-2023 00:49 108040