../ dmsp_15_ephemeris_20220920.txt 22-Jun-2023 16:33 109743 dmsp_16_ephemeris_20220920.txt 22-Jun-2023 16:33 109607 dmsp_17_ephemeris_20220920.txt 22-Jun-2023 16:33 109700 dmsp_18_ephemeris_20220920.txt 22-Jun-2023 16:33 109594