../ dmsp_15_ephemeris_20220522.txt 22-Jun-2023 16:32 109689 dmsp_16_ephemeris_20220522.txt 22-Jun-2023 16:32 109575 dmsp_17_ephemeris_20220522.txt 22-Jun-2023 16:32 109630 dmsp_18_ephemeris_20220522.txt 22-Jun-2023 16:32 109517