../ dmsp_15_ephemeris_20220524.txt 22-Jun-2023 00:51 109614 dmsp_16_ephemeris_20220524.txt 22-Jun-2023 00:51 109614 dmsp_17_ephemeris_20220524.txt 22-Jun-2023 00:51 109560 dmsp_18_ephemeris_20220524.txt 22-Jun-2023 00:51 109436