AUSPICIOUS 8 · OCTOBER 15 JOVIAN TELESCOPE · FOUR-RECORDING EXTENSION Source observations (chronological by filenames / embedded recording stamps): 05:42:09, 05:44:57, 05:48:27, 05:59:14 The earlier originals are distributed with this supplement. The later two originals are already in DATA Entry 016 on trade and MUST NOT be overwritten. Jupiter-relative separation (pixels; PRELIMINARY), as reported in the October 15 measurement conversation: Europa Callisto Ganymede 05:42:09 242.57 368.63 438.86 05:44:57 241.38 367.22 439.02 05:48:27 240.05 366.92 441.19 05:59:14 238.62 369.00 438.56 Individual source-frame timestamp alignment and centroid uncertainty are not fully validated. Treat motion below a few pixels as unresolved; observations near Ganymede's elongation may show minimal apparent displacement. Observer reports: Europa inward, Callisto outward, Ganymede outward toward western extreme, Io occulted. These observer reports are distinct from pixel-derived directional proof. A8 witness readings transcribed in the conversation from selected displayed frames are included in the CSV, labeled provisional. A8 clock and DAY_PHASE17 may be from different on-screen refresh moments; in particular the final row's 15:53:35 and DAY_PHASE17 65507 are not mutually consistent as one instant. DO NOT treat these as synchronized positions or fabricate an exact RAW at missing frames. Filenames/UTC metadata are reference labels only. The preserved camera field is the measurement input, not any previous cropped comparison panel. The Sky & Telescope October 15 illustration is an external cross-check only, not A8 astronomical authority. The next independent work is a synchronized read-only comparison of MOONS, EUROPA/Core20, and GANYMEDE/Core21 model-coordinate inputs/positions. None of the above is proof the two coordinate domains already agree. No clock, astronomical model, carrier, phase, rate, authority, or server process is changed by the archival supplement.