../ dmsp_15_ephemeris_20220628.txt 22-Jun-2023 00:51 109467 dmsp_16_ephemeris_20220628.txt 22-Jun-2023 00:51 109511 dmsp_17_ephemeris_20220628.txt 22-Jun-2023 00:51 109755 dmsp_18_ephemeris_20220628.txt 22-Jun-2023 00:51 109515