../ dmsp_15_ephemeris_20111016.txt 22-Jun-2023 16:12 109497 dmsp_16_ephemeris_20111016.txt 22-Jun-2023 16:12 109511 dmsp_17_ephemeris_20111016.txt 22-Jun-2023 16:12 109581 dmsp_18_ephemeris_20111016.txt 22-Jun-2023 16:12 109559