../ dmsp_15_ephemeris_20150916.txt 22-Jun-2023 16:21 109621 dmsp_16_ephemeris_20150916.txt 22-Jun-2023 16:21 109622 dmsp_17_ephemeris_20150916.txt 22-Jun-2023 16:21 109711 dmsp_18_ephemeris_20150916.txt 22-Jun-2023 16:21 109721 dmsp_19_ephemeris_20150916.txt 22-Jun-2023 16:21 109713