../ dmsp_15_ephemeris_20200802.txt 22-Jun-2023 00:44 109462 dmsp_16_ephemeris_20200802.txt 22-Jun-2023 00:44 109628 dmsp_17_ephemeris_20200802.txt 22-Jun-2023 00:44 109579 dmsp_18_ephemeris_20200802.txt 22-Jun-2023 00:44 109567