Preregistration: Apollo-to-Artemis communication time budget
Year: 2026
Type: article
Abstract: Data snapshot. The exact version (commit ID) and SHA-256 fingerprint of each of the seven transcript files: Apollo 8, 11, 13 and 17, plus the Apollo 13 loops. Measures. Each is defined so a script computes it with no hand coding: Human response time, with light time removed. Read-back corrections of numeric data. Exchanges per hour. Anomaly windows, fixed now for Apollo 8, 11 and 13. The time-budget model and the Artemis conditions: round trips of 5, 10 and 14 seconds, and relay coverage of 75% for high-rate and 90% for low-rate links. Four hypotheses: H1: human time exceeds lunar light time. H2: anomalies speed up ground replies. H3: read-backs rarely needed correction. H4: ground answers to crew questions during anomalies are at risk under Artemis delay. Four Apollo practices, each classed as enduring, at risk or obsolete by a rule stated in advance: one CAPCOM voice loop, voice read-backs, immediate ground answers during anomalies, and ground reachability. Sensitivity checks, a policy for changes, and a commitment to report results whatever their direction.
Author: Figueroa, Ralph
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7225638776
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