../ themis_a_ephemeris_20260319.txt 13-May-2026 04:00 109978 themis_b_ephemeris_20260319.txt 13-May-2026 04:00 81548 themis_c_ephemeris_20260319.txt 13-May-2026 04:00 81387 themis_d_ephemeris_20260319.txt 13-May-2026 04:00 108825 themis_e_ephemeris_20260319.txt 13-May-2026 04:00 109546