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(meteorobs) Perseid Observations August 11/12 from Oregon



I observed the Perseids from Chiloquin, OR on August 11/12 from 0530-0743 UT.  Skies were decent despite a bit of smoke and haze.  Morning observations had to be canceled due to variable cloudiness, although I did see a few bright Perseids during a casual watch.

Quick Report (full report below):

0530-0634:  Teff=1.0, F=1.0, LM=6.3
25 Perseids of mean magnitude 1.6
12 Sporadics of mean magnitude 2.6
1 Kappa Cygnid of magnitude 4

0640-0743: Teff=1.0, F=1.0, LM=6.3
35 Perseids of mean magnitude 2.3
8 Sporadics of mean magnitude 2.6

==================
Full NAMN report (use fixed-width font to display)

NAMN Visual Observing Form:
Summary Report 

DATE:  2001 August 11/12     BEGIN: 0530 UT       END: 0743 UT
OBSERVER: Wes Stone (STOWE)
LOCATION: Long: 121.867  West; Lat: 42.576  North
City & State: Chiloquin, OR  Elevation: 1300 meters
RECORDING METHOD: Tape Recorder, illuminated watch (~3 seconds per meteor subtracted)
-----------------------------------------------------------------------
OBSERVED SHOWERS: (Use 3 letter Codes)
PER  03:04; +58 
KCG  18:56; +58
SPO

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

OBSERVING PERIODS:
0 = None seen;  / = shower not watched.

PERIOD(UT)    Teff     FIELD        LM      PER     KCG     SPO
0530-0634      1.0   21:50; +35     6.3     25       1       12
0640-0743      1.0       "          6.3     35       0        8
-----------------------------------------------------------------------

MAGNITUDE DISTRIBUTIONS:

0530-0634
SHOWER   -3  -2  -1   0  +1  +2  +3  +4  +5  TOTAL
PER       1   3   2   2   1   3   8   4   1    25
KCG       0   0   0   0   0   0   0   1   0     1
SPO       0   0   0   1   1   3   5   1   1    12
-----

0640-0743
SHOWER   -3  -2  -1   0  +1  +2  +3  +4  +5  TOTAL
PER       0   0   2   3   3   6  15   6   0    35  
KCG       0   0   0   0   0   0   0   0   0     0
SPO       0   0   0   0   0   3   5   0   0     8 

-----------------------------------------------------------------------
SKY OBSCURED:
0% FROM: 0530 - 0743 UT
-----------------------------------------------------------------------

DEAD TIME: 4 minutes from 0530 - 0634UT (recording plus position change)

BREAKS: 0634 - 0640 UT

-----------------------------------------------------------------------
LIMITING MAGNITUDE:

                STAR    STAR
TIME            AREA    COUNT   LM
0530             14      16     6.29
0530              7      20     6.47
0545             14      16     6.29
0545              7      19     6.44
0545             13      17     6.47
0545             15      16     6.34
0600             14      16     6.29
0600              7      20     6.47
0615             14      16     6.29 
0615              7      17     6.19 
------
0640             14      18     6.34
0640              7      19     6.44
0655             14      17     6.31
0655              7      18     6.23 
0710             14      18     6.34
0710              7      18     6.23
0725             14      16     6.29
0725              7      18     6.23

MEAN LIMITING MAGNITUDE:  6.34 from 0530-0634; 6.30 from 0640-0743
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METEOR DATA:

                            SPEED
#    TIME(UT)  SHOWER  MAG  (1-5)  COLOR  TRAIN(SEC)  -----------------------------------------------------
1     0530      PER     3      3      
2     0531      PER     1      4
3     0535      PER     4      3
4     0536      PER    -2      4     blue    2
5     0536      PER     3      4             ~
6     0537      PER     2      3     yellow  ~
7     0538      PER     4      4 
8     0540      SPO     4      2
9     0543      PER    -1      4     yellow  1  
10    0546      SPO     3      3
11    0546      SPO     3      4 
12    0548      PER     5      4 
13    0553      PER     0      4             5
14    0556      PER     3      5 
15    0600      SPO     3      3
16    0601      PER    -1      3             4  
17    06:01:48  PER    -3      4
18    0603      PER     3      4 
19    0603      SPO     2      3 
20    0605      SPO     1      5
21    0606      SPO     0      4
22    0610      PER     0      5             3
23    0613      PER     2      4             1 
24    0613      PER     3      4             ~  
25    0614      PER     3      4
26    0615      SPO     5      2
27    0616      SPO     3      5
28    0619      PER     3      5
29    0620      PER    -2      4             3
30    0620      PER     3      4             ~
31    0621      PER     4      4 
32    0622      PER     2      3             ~
33    0622      PER    -2      3 
34    0625      PER     4      5 
35    0627      SPO     2      3
36    0628      KCG     4      2
37    0631      SPO     3      4
38    0632      SPO     2      4
-----------------------------------------------
39    0640      PER     3      4    
40    0640      PER     0      3  
41    0641      PER     0      4             6
42    0642      SPO     2      5
43    0644      SPO     3      4  
44    0645      SPO     2      2
45    0646      PER     1      3
46    0646      PER     3      3             ~
47    0648      PER     0      3             6
48    0651      PER     3      4             ~ 
49    0651      PER     3      4             ~
50    0652      PER     3      4 
51    0653      PER     3      4
52    0655      SPO     2      2    orange
53    0655      PER     4      4
54    0655      PER     3      4
55    0657      PER     3      5
56    0659      PER     2      4             ~
57    0700      PER     2      4 
58    0701      PER     2      4             ~
59    0701      PER     4      5
60    0701      PER     3      5
61    0702      SPO     3      3
62    0704      PER     2      3
63    0706      PER    -1      4             1 
64    0707      PER     3      4             ~
65    0707      PER     2      4             1
66    0707      PER     3      4             ~  
67    0709      PER     4      5 
68    0710      PER     3      4             ~
69    0710      PER    -1      3          
70    0710      PER     3      4             1
71    0713      PER     3      4
72    0717      PER     3      3
73    0726      SPO     3      3
74    0726      PER     4      5
75    0729      PER     2      5             2
76    0729      SPO     3      3
77    0732      SPO     3      1        
78    0732      PER     1      4             ~
79    0733      PER     4      4
80    0736      PER     4      5 
81    0741      PER     1      4             2

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REMARKS:

There was some smoke and haze in the air due to forest fires, mainly
affecting the lower 20 degrees of the sky.  A bank of clouds in the
east, out of my field, was actually helpful in preventing direct
glare after moonrise. 

Meteors 27 and 37 may have been associated with the 
Northern Apex radiant.

Meteors 20 and 21 may have been Perseids, but were seen at
a large DCV during an LM count.

A point event of magnitude 1 was seen just east of 
Beta Aqr at 0619; I could not rule out a satellite.

Meteor 44 may have been a Kappa Cygnid, but was seen at a large
DCV.

Meteor 73 may have come from one of the Aquarid radiants.

Meteor 77 may have been an Alpha Capricornid.
-----------------------------------------------------------------------

Wes Stone
http://skytour.homestead.com

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