../ dmsp_15_ephemeris_20221116.txt 22-Jun-2023 00:53 109402 dmsp_16_ephemeris_20221116.txt 22-Jun-2023 00:53 109513 dmsp_17_ephemeris_20221116.txt 22-Jun-2023 00:53 109229 dmsp_18_ephemeris_20221116.txt 22-Jun-2023 00:53 109466