Protuberances data format (1933-1956)

1-4	Year
6-7	Month
9-10	Day
11-20	Data for latitude range +90..+60, east limb, 
	in format AIF, where
        A - 4-digit protuberances area in protuberance units (9999=no data)
        I - a sequence of zero or more letters characterizing intensity of the protuberance:
		A - faint
		B - moderate
		C - bright
		D - very bright
		E - exclusive
		_ - no data
        F - a sequence of zero or more digits charactetrizing form of the protuberance:
		1 - procumbent, herbaceous (Russian: "steliushchajasia, travianistaja")
		2 - compact, close to semicircular
		3 - divaricate (Russian: "razvetvlennaja")
		4 - arched
		5 - detached (Russian: "otdelivshajasia")
21-30	Data for latitude range +60..+30, east limb
31-40	Data for latitude range +30..0,   east limb
41-50	Data for latitude range  0..-30,  east limb
51-60	Data for latitude range -30..-60, east limb
61-70	Data for latitude range -60..-90, east limb
71-80	Data for latitude range -90..-60, west limb
81-90	Data for latitude range -60..-30, west limb
91-100	Data for latitude range -30..0,   west limb
101-110	Data for latitude range  0..+30,  west limb
111-120	Data for latitude range +30..+60, west limb
121-130	Data for latitude range +60..+90, west limb