../ dmsp_15_ephemeris_20131004.txt 22-Jun-2023 16:36 109547 dmsp_16_ephemeris_20131004.txt 22-Jun-2023 16:36 109597 dmsp_17_ephemeris_20131004.txt 22-Jun-2023 16:36 109634 dmsp_18_ephemeris_20131004.txt 22-Jun-2023 16:36 109621