Birth Data Quality and Rodden Ratings: A Source-Reviewed Guide
Birth-time quality describes provenance and precision, not how convincing a chart appears. Scope and limits are explicit.
Overview
A birth time is labelled by provenance and precision—record, quotation, memory, estimate, rectification, or unknown—rather than silently upgraded because a chart looks convincing. The page shows exactly what to verify, how to repeat the method, where a plausible near miss fails, which variants change the result, and what the evidence cannot establish.
At a glance
- Direct scope
- Reviewed finding — Birth-time quality describes provenance and precision, not how convincing a chart appears. Certificates, quoted records, family memory, estimates, rectification, and unknown time must remain visibly distinct.
- Evidence to verify
- Method checkpoint — Preserve the original wording, document holder, retrieval date, time precision, time-zone interpretation, Rodden category and reason, conflicts among sources, and every later correction without overwriting prior provenance.
- Repeatable method
- Worked-case result — A hospital record states 14:32, while a parent recalls “around half past two.” The record and memory receive separate entries; the displayed confidence follows the documented source, not their apparent agreement.
- Worked example
- Failure condition — Upgrading an estimated time because the Ascendant “fits” is circular: the same interpretation selected the time and then is cited as confirmation. Rectification must remain labelled inference.
- Near miss
- Documented variant — Different archives and rating systems may use their own labels. A local interface can map them only if it retains the source’s original category, definition, date, and uncertainty.
- Limits and safety
- Use boundary — A high provenance rating supports input confidence, not interpretive validity or permission to expose someone’s data. Contradictory records, privacy controls, and time-dependent chart fields remain explicit.
Definition and Scope
A birth time is labelled by provenance and precision—record, quotation, memory, estimate, rectification, or unknown—rather than silently upgraded because a chart looks convincing.
Birth-time quality describes provenance and precision, not how convincing a chart appears. Certificates, quoted records, family memory, estimates, rectification, and unknown time must remain visibly distinct.
Evidence and Repeatable Method
Preserve the original wording, document holder, retrieval date, time precision, time-zone interpretation, Rodden category and reason, conflicts among sources, and every later correction without overwriting prior provenance.
Worked Example and Near Miss
A hospital record states 14:32, while a parent recalls “around half past two.” The record and memory receive separate entries; the displayed confidence follows the documented source, not their apparent agreement.
Upgrading an estimated time because the Ascendant “fits” is circular: the same interpretation selected the time and then is cited as confirmation. Rectification must remain labelled inference.
Variants and Disagreement
Different archives and rating systems may use their own labels. A local interface can map them only if it retains the source’s original category, definition, date, and uncertainty.
Limits and Safe Use
A high provenance rating supports input confidence, not interpretive validity or permission to expose someone’s data. Contradictory records, privacy controls, and time-dependent chart fields remain explicit.
Sources and editorial basis
- Astro-Databank: Rodden Rating SystemAstro-Databank Help:RR, sections defining AA, A, B, C, DD, and X ratings and source-note requirementsThe documented AA–DD/X data-quality notation for birth records, useful for provenance labels but not a guarantee that any interpretation is true.
- Organization for Professional Astrology: Code of EthicsOPA Code of Ethics §1(c) Accurate Data and §2(g) Integrity with Public Figures’ Charts and Rodden Rating referenceAn independent practitioner code covering accurate data, confidentiality, client welfare, informed practice, competence, and referral boundaries.