../ dmsp_15_ephemeris_20140521.txt 22-Jun-2023 16:17 109485 dmsp_16_ephemeris_20140521.txt 22-Jun-2023 16:17 109613 dmsp_17_ephemeris_20140521.txt 22-Jun-2023 16:17 109737 dmsp_18_ephemeris_20140521.txt 22-Jun-2023 16:17 109409 dmsp_19_ephemeris_20140521.txt 22-Jun-2023 16:17 109705