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(meteorobs) My PER/SDA Summary for July 29/30, 1997 ZAYGE



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                  PERSEID METEOR SHOWER
                     SUMMARY REPORT	


DATE: July 29/30, 1997 BEGIN: 7h00 UT END: 11h45 UT
OBSERVER : George J. Zay,   IMO code: ZAYGE
LOCATION : Long:116 deg  37' 30S  West;  Lat: 32 50' 18" North
           Descanso, Calif. USA;  Elevation: 1003 meters



OBSERVED SHOWERS:
PER, SDA, NDA, CAP, SIA, PAU
-----------------------------------------------------------------
-----------------------------------------------------------------
OBSERVING PERIODS: 
PERIOD(UT)   FIELD   Teff  F  LM  PER SDA NDA CAP SIA PAU Spor
-----------------------------------------------------------------  
7h00-8h00    325d+10 1.0   1  6.1  3   2   4   1   1   0    1
8h00-9h00    335d 0  1.0   1  6.05 3   6   4   4   2   2   10
9h00-10h00   352d+4  1.0   1  6.02 4  11   2   1   2   0   13
10h00-11h00  352d+4  1.0   1  6.13 7   6   1   4   0   0    6
11h00-11h45  352d+4  0.75  1  6.05 4   4   1   3   0   0    5 
-----------------------------------------------------------------
-----------------------------------------------------------------
MAGNITUDE DISTRIBUTIONS:

SHOWER
PER  = (0)2, (+1)3, (+2)11, (+3)4, (+4)1 = 21
SDA  = (-2)1, (0)1, (+1)2, (+2)10, (+3)8, (+4)7 = 29
NDA  = (-1)1, (0)2, (+1)2, (+2)2, (+3)5 = 12
CAP  = (0)1, (+1)5, (+2)4, (+3)2, (+4)1 = 13
SIA  = (+1)1, (+3)1, (+4)2, (+5)1 = 5
PAU  = (+2)1, (+3)1, (+4)1 = 3           
SPOR = (-1)1, (0)2, (+1)2, (+2)17, (+3)7, (+4)4, (+5)2 = 35 
TOTAL= 119 meteors                                      

MEAN MAGNITUDES:
PER  = 1.95
SDA  = 2.48
NDA  = 1.58
CAP  = 1.77
SIA  = 3.4
PAU  = 3.0
Spor = 2.34
------------------------------------------------------------------
------------------------------------------------------------------     
DEAD TIME: none (No camera operations on this nite)             
BREAKS   : none
Teff     : 4.75 hours
Obscured Sky: none       





                                                                             
------------------------------------------------------------------
------------------------------------------------------------------
Perseid and S. Delta Aquarid Rates in ten minute increments:
                
          PER/SDA   

7h00-7h10  =1/0
7h10-7h20  =0/1
7h20-7h30  =0/1
7h30-7h40  =0/0
7h40-7h50  =2/0
7h50-8h00  =0/0
8h00-8h10  =1/0
8h10-8h20  =1/1
8h20-8h30  =2/2
8h30-8h40  =0/0
8h40-8h50  =0/1
8h50-9h00  =0/1
9h00-9h10  =0/2
9h10-9h20  =2/0
9h20-9h30  =1/2
9h30-9h40  =0/2
9h40-9h50  =0/4
9h50-10h00 =1/0
10h00-10h10=2/2
10h10-10h20=3/0
10h20-10h30=1/2
10h30-10h40=0/2
10h40-10h50=1/0
10h50-11h00=0/0
11h00-11h10=1/1
11h10-11h20=1/2
11h20-11h30=1/1
11h30-11h40=0/0
11h40-11h45=1/0 (this was a 5 minute period)
--------------------------------------------------
Percent of Perseids and S. Delta Aquarids that 
produced persistent trains of 1/2 second or longer:

Perseids = 57%
s. Delta Aquarids = 3.4%