../ dmsp_15_ephemeris_20220920.txt 22-Jun-2023 00:53 109743 dmsp_16_ephemeris_20220920.txt 22-Jun-2023 00:53 109607 dmsp_17_ephemeris_20220920.txt 22-Jun-2023 00:53 109700 dmsp_18_ephemeris_20220920.txt 22-Jun-2023 00:53 109594