Rodden definition

Lois Rodden (22 May 1928 - 5 June 2003) was an astrologer, astrological data collector and founder of Astrodatabank.
She was a pioneer in raising awareness of the sourcing of data being foundational in the credibility of astrology.
Lois was born Lois Mae Fast on May 22, 1928 at 12:22 am MST (rectified by her) in Lang, Saskatchewan, Canada.

See: https://en.wikipedia.org/wiki/Lois_Rodden

Rodden values:

X The data does not include time of birth. Only the date of birth is known.
AA The data comes from the State or the family (birth certificate, state registers, baptism, etc.). This is the most reliable source one can have.
AAX The birth certificate or registers exist, but do not indicate any time of birth.
A The data comes from the person, from the family, from an astrologer consulted, or from precise testimonies of relatives. They are reliable, but sometimes the person himself does not always tell the truth.
B The data comes from a biography or an autobiography. The finer the details, the greater the reliability. In rare cases, if the biography is unique, caution is advised.
C Reliability is low. The original source does not exist or the data is vague. Or the person only indicates their Ascendant,in which case the time is corrected from an approximate time.
DD There are several conflicting sources at the moment. DD stand for "dirty data". The sources are therefore unreliable.
XX Birth data conflict for date or time. This is often the case for ancient historical persons. They are present for information only.
U Rodden not known.