S O L A R R A D I O E M I S S I O N SPECTRAL OBSERVATIONS STATION : ASTROPHYSIKALISCHES INSTITUT POTSDAM OBSERVATORIUM FUER SOLARE RADIOASTRONOMIE D - 14552 TREMSDORF (GERMANY) FREQUENCY RANGE : 40 - 800 MHz MONTH : APRIL YEAR : 1996 -------------------------------------------------------------------------------------------------- 1 2 3 4 5 6 7 8 9 10 11 12 -------------------------------------------------------------------------------------------------- 960401 0700 1500 POTS 1332.8 1332.9 III B 1 110U 160 960402 0700 1500 POTS 1007.9 1008.2 III G 2 40X 170U 960402 POTS 1251.1 1251.3 III B 1 40X 170U 960403 0700 1500 POTS no burst 960404 0700 1500 POTS no burst 960405 0700 1500 POTS 0708 1500 U I S,W 1 120 170U 960406 POTS no observations 960407 POTS no observations 960408 0700 1500 POTS no burst 960409 0700 1500 POTS no burst 960410 0700 1500 POTS no burst 960411 0700 1500 POTS no burst *) 960412 0700 1500 POTS no burst *) 960413 POTS no observations *) 960414 POTS no observations *) 960415 0700 1500 POTS no burst *) 960416 0700 1500 POTS no burst *) 960417 0700 1500 POTS no burst *) 960418 0700 1500 POTS 0755.5 0755.6 III B 1 110U 170U *) 960419 0700 1500 POTS no burst *) 960420 POTS no observations 960421 POTS no observations 960422 0700 1500 POTS 0700 E 1500 U I S 1 130 400 *) 960422 POTS 0951.2 0951.3 III GG 1 110U 170U *) 960422 POTS 1150.9 1151.0 III G,RS 1 110U 150 *) 960422 POTS 1224.6 1225.1 III G 1 110U 250 *) 960422 POTS 1233.8 1234.0 III G 1 110U 250 *) 960422 POTS 1248.1 1248.2 III B 1 110U 160 *) 960422 POTS 1350.3 1350.5 III G 1 110U 170U *) 960422 POTS 1457.4 1459.5 III GG 2 110U 350 *) 960423 0700 1500 POTS 0700 E 1500 U I S 2 110U 400 *) 960424 0700 1500 POTS 0700 E 0725 I S 1 140 170 *) 960424 POTS 0951 1040 I S 1 200U 350 *) 960424 POTS 1352 1500 U I S 1 130 170U *) 960425 0700 1500 POTS 1100.9 1101.2 UNCLF 1 110U 170U *) 960425 POTS 1234.4 1234.6 III B 2 110U 170U *) 960425 POTS 1327.5 1327.7 III G 1 110U 170U *) 960426 0700 1500 POTS 1253.9 1254.1 III B 2 110U 170U *) 960427 POTS no observations 960428 POTS no observations 960429 0700 1500 POTS no burst *) 960430 0700 1500 POTS no burst *) *) 40-90 MHz : no measurements by technical disturbances DESCRIPTION : 1 - Date (yymmdd) EVENT REMARKS : B - Single burst 2 - Start of observation C - Underlying continuum 3 - End of observation (particularly with TypeI) 4 - Station DC - Drifting chains (Type I) 5 - Event start time DP - Drifting pairs (Type I) 7 - Spectral class F - Fundamental emission (Type II) 8 - Associated spectral class remarks FS - Fine structure (Type IV) 9 - Intensity (1-3) G - Small group of bursts (<10) 10 - Low frequency boundary (MHz) of the event GG - Large group of bursts (>10) 11 - Upper frequency boundary (MHz) of the event H - Herringbone (Type II) 12 - Remarks N - Intermittent activity in this period RS - Reverse drifting burst FREQUENCY S - Storm, intermittent, QUALIFIERS : X - Extent beyond the instruments range but apparently connected U - Uncertain frequency SH - Secondary harmonic emission (Type II) U - U-shaped burst of type III UE - Uncertain emission (type II) W - Weak