*k T-S AS 144.180
*t Astronomical
*s 21.1 x 29.5; 26 lines
*m Paper, 2 leaves (bifolium); holes 
*l Judaeo-Arabic
*c Astronomical work mentioning the ecliptic orb, epicyclic orb, celestial equator, meridian cycle, summer solstice.
*e Hand is Spanish semi-cursive with diacritical dots. Text has diagrams. Judaeo-Arabic is very classical without typical Middle Arabic features. It is possible that this is a transcription of a work written in Arabic script, as the language is very classical and all diacritical dots are on every letter that would require it.