(meteorobs) Observation June 23/24 2004

[Pierre Martin]

Here's my data report for June 23/24 2004...

Clear skies!

Pierre Martin
Ottawa, Ontario



DATE: June 23/24 2004
BEGIN: 0220 UT (2220 EDT)  END: 0540 UT (0140 EDT)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -75.063 West; Lat: 45.269 North  Elevation: 200 ft
City & Province: St-Albert, Ontario, CANADA
RECORDING METHOD: talking clock/tape recorder, plotting
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OBSERVED SHOWERS:_____________________________________radiant position
		JBO (June Bootids)_____________________________14:48 +48
		TOP (Theta Ophiuchids)_________________________16:04 -12
		SAG (antihelions or Sagittarids)_______________18:52 -23
		TAQ (Tau Aquarids)_____________________________22:20 -15
		JLY (June Lyrids)______________________________18:44 +35
		XDR (Xi Draconids)_____________________________18:44 +55
		CET (Tau Cetids)_______________________________01:12 -15
		NPX (sporadics from north apex)________________23:52 +14
		SPX (sporadics from south apex)________________23:52 -16
		SPO (random sporadics)
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OBSERVING PERIODS: 0 = none seen;  / = shower not observed

PERIOD(UT)__FIELD___Teff__F_____LM___JBO_TOP_SAG_TAQ_JLY_XDR_CET_NPX_SPX 
_SPO

0220-0321__1703+14__1.00__1.01__6.11__1___0___2___/___0___1___/___0___/ 
___5
0321-0428__1501+22__1.01__1.01__6.34__0___1___2___0___0___2___/___0___/ 
___9
0428-0540__1615+18__1.20__1.00__6.46__0___0___1___1___1___2___/___1___/ 
___5

TOTALS:_____________3.21______________1___1___5___1___1___5___/___1___/ 
__19 = 34

The first column (Period UT) refers to observing periods broken down as  
close as possible to one hour of true observing, in Universal Time. The  
second column (Field) is the area in in the sky where I centered my  
field of view. The third column (TEFF) represents effective observing  
time (corrected for breaks or any time I did not spent looking at the  
sky). The fourth column (F) is a value for obstructions in the field of  
view such as clouds (1.00 = 100% clear skies). The next column (LM) is  
the average naked eye limiting magnitude, determined by triangle star  
counts. All following columns indicate the number of meteors for each  
shower observed.
------------------------

MAGNITUDE DISTRIBUTIONS:

SHOWER
_____-1___0__+1__+2__+3__+4__+5______AVE

SAG___1___1___0___0___2___1___0_____+1.80
XDR___0___0___2___0___2___0___1_____+2.60
JBO___0___0___0___0___0___1___0_____+4.00
TOP___0___0___0___0___0___1___0_____+4.00
TAQ___0___0___0___0___1___0___0_____+3.00
JLY___0___0___0___0___0___1___0_____+4.00
SPO___0___1___3___1___8___5___2_____+2.95

Note: Magnitude scale is to determine the brightness of sky objects.  
Magnitude -8 is comparable to a quarter moon, magnitude -4 with the  
planet Venus, magnitude -1 with the brightest star Sirius, magnitude +2  
to +3 with most average naked eye stars and magnitude +6 to +7 are the  
faintest stars the naked eye can see under typical dark conditions. A  
meteor of at least magnitude -3 is considered a fireball.  The above  
table contains the magnitudes from all observed meteors, and the  
average (last column) for showers.
------------------------

SKY OBSCURED (FOV): None
------------------------

Dead time: 7.49 min. (2.16 min for plotting)

Breaks (UT): 2:26(20sec), 3:45-3:50
-------------------------