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(meteorobs) My Perseid Summary Report for Aug 11/12 ZAYGE




                  
                      PERSEID METEOR SHOWER
                         SUMMARY REPORT


DATE: Aug 11/12, 1997 BEGIN: 5h47 UT END: 12h00 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:

SHOWER   RA    DEC.   Diam.   #####   SHOWER   RA    DEC.   DIAM.
PER                           #####   KCG 
-----------------------------------------------------------------
-----------------------------------------------------------------
OBSERVING PERIODS: Camera operations is subtracted from periods.
PERIOD(UT)    FIELD   Teff  F  LM    Meteors
-----------------------------------------------------------------  
5h47-6h49     270d+70 1.0   1  5.75    8PER,  2KCG, 2Spor
6h49-7h52     315d+63 1.0   1  5.93    20PER,  0KCG, 6Spor
7h52-8h59     315d+63 1.0   1  6.1     70PER, 1KCG, 9Spor
8h59-10h05    315d+63 1.0   1  6.1     79PER, 2KCG, 13Spor
10h05-11h07   330d+63 1.0   1  6.08    63PER, 0KCG, 15Spor
11h07-12h00   350d+60 0.85  1  5.87    63PER, 1KCG, 7Spor
-----------------------------------------------------------------
-----------------------------------------------------------------
COMBINED PERIODS MAGNITUDE DISTRIBUTIONS:

PER  = (-8)2, (-7)1, (-4)4, (-3)2, (-2)9, (-1)25, (0)43,
(+1)48, (+2)93, (+3)45, (+4)28, (+5)3
Total = 303  
                      
KCG= (0)1, (+3)3, (+4)2
Total = 6
                          
SPOR = (-2)1, (0)1, (+1)7, (+2)12, (+3)14, (+4)14,
(+5)3
Total = 52

Total Meteors = 361                                 

MEAN
PER = 1.35
KCG = 2.83
Spor= 2.73    
------------------------------------------------------------------
------------------------------------------------------------------
PERSEID MAGNITUDE DISTRIBUTIONS & MEAN MAGNITUDES BY OBSERVING
PERIODS:

5h47-7h52 =  (-1)4, (0)5, (+1)4, (+2)8, (+3)1, (+4)6 = 28 meteors
(first two periods combined)
MEAN MAGNITUDE: 1.55

7h52-8h59 =  (-8)1, (-4)1, (-3)1,(-2)3, (-1)8, (0)7, (+1)9,
             (+2)19, (+3)12, (+4)8, (+5)1 = 70 meteors
MEAN MAGNITUDE: 1.30

8h59-10h05=  (-7)1, (-4)2, (-2)4, (-1)3, (0)10, (+1)10, (+2)30,
             (+3)12, (+4)6, (+5)1 = 79 meteors
MEAN MAGNITUDE: 1.85

10h05-11h07= (-3)1, (-2)2, (-1)8, (0)12, (+1)13, (+2)15, (+3)7,
             (+4)5 = 63 meteors
MEAN MAGNITUDE: 1.10

11h07-12h00= (-8)1, (-4)1, (-1)2, (0)9, (+1)12, (+2)21, (+3)13,
             (+4)3, (+5)1 = 63 meteors
MEAN MAGNITUDE: 1.52

------------------------------------------------------------------
------------------------------------------------------------------

PERSEID RATES IN TEN MINUTE INCREMENTS*
(periods adjusted to show 10 minutes after camera operation dead
 time)

UNIVERSAL
TIME
PERIOD:     # OF PERSEIDS
5h47-5h57  =  0
5h57-6h07  =  2
6h07-6h17  =  1
6h17-6h19  =  0
6h19-6h29  =  1
6h29-6h39  =  2
6h39-6h49  =  2
6h49-6h59  =  3
6h59-7h09  =  0
7h09-7h19  =  1
7h19-7h29  =  3
7h29-7h39  =  4
7h39-7h49  =  9
7h49-7h59  =  5
7h59-8h10  =  4
8h10-8h20  =  12
8h20-8h34  =  17
8h34-8h44  =  15
8h44-8h54  =  13
8h54-9h05  =   9
9h05-9h15  =  13
9h15-9h25  =  12
9h25-9h36  =  9
9h36-9h46  =  17
9h46-9h56  =  12
9h56-10h07 =  11
10h07-10h17=  13
10h17-10h28=  12
10h28-10h38=  11
10h38-10h49=  7
10h49-10h59=  11
10h59-11h09=  10
11h09-11h20=  15
11h20-11h30=  13
11h30-11h41=  10
11h41-11h51=  14
11h51-12h00=  9(this is a 9 minute period)
------------------------------------------------------------------
------------------------------------------------------------------
SKY OBSCURDED: None       
DEAD TIME: 22 minutes for camera operations.
BREAKS   : None
Teff     : 5.85 hours    
------------------------------------------------------------------
------------------------------------------------------------------

Percent of Perseids that left a 1/2 second or longer Persistent
train was 48.2%.  
------------------------------------------------------------------
All data submitted to the International Meteor Organization.