Protuberances data format (1957-)

1-4	Year
6-7	Month
9-13	Day (with fractional part)
15-17	Latitude
18	Limb (E=east, W=west)
20-23	Size by latitude (in degrees)
25-27	Height (in seconds of arc)
29-31	Brightness (in 3-point scale)
33-36	Area in protuberance units