../ dmsp_15_ephemeris_20151119.txt 22-Jun-2023 00:29 109371 dmsp_16_ephemeris_20151119.txt 22-Jun-2023 00:29 109508 dmsp_17_ephemeris_20151119.txt 22-Jun-2023 00:29 109350 dmsp_18_ephemeris_20151119.txt 22-Jun-2023 00:29 109487 dmsp_19_ephemeris_20151119.txt 22-Jun-2023 00:29 109397