../ dmsp_15_ephemeris_20150815.txt 22-Jun-2023 16:21 109564 dmsp_16_ephemeris_20150815.txt 22-Jun-2023 16:21 109497 dmsp_17_ephemeris_20150815.txt 22-Jun-2023 16:21 109708 dmsp_18_ephemeris_20150815.txt 22-Jun-2023 16:21 109523 dmsp_19_ephemeris_20150815.txt 22-Jun-2023 16:21 109704