(meteorobs) November 19, 2004 Meteor Observations from California

[Bea and Bruce Patterson]

Unfortunately totally rained out in SW Ontario

josephasmus at cox.net wrote:

>Nice report...I am bummed I didn't go!
>  
>
>>From: "Robert Lunsford" <lunro.imo.usa at cox.net>
>>Date: 2004/11/19 Fri PM 01:48:41 EST
>>To: <Undisclosed-Recipient:;>
>>Subject: (meteorobs) November 19, 2004 Meteor Observations from California
>>
>>After a clear day cirrus rolled in at dusk and threatened my plans to
>>observe tonight. I woke at 10:00pm PST and the sky was partly overcast. It
>>was better than I expected but I still needed more sleep so I went back to
>>bed and rose again at 1:00am. The sky was better so I hopped in the truck
>>and drove to darker skies. I saw two bright Leonids while driving so
>>things looked promising. I began counting at 2:00am and my first two meteors
>>were Alpha Monocerotids.  Leonid activity started off slowly but the hour
>>still ended with ten shower members. This rate continued until 3:30am when
>>Leonid activity really took off. Between 3:30 and 3:35, 14 Leonids were
>>recorded. These were rates I was expecting for an entire hour so I was
>>pleasantly surprised. Most of these Leonids were bright during this short
>>burst with the brightest being -3. For the next half hour rates went back to
>>normal. Then at 4:09, another "mini-outburst" occurred when 12 Leonids were
>>seen in six minutes. Once again these Leonids were brighter than those seen
>>during the time of normal rates. During times of normal activity most of the
>>Leonids were faint, with +3's, +4's and +5's dominating. In all, I recorded
>>68 Leonids with a average magnitude of +2.21. This is much fainter than the
>>average for the first two nights. Other shower activity was low. The
>>sporadic activity was strange with hourly rates of 11, 5 and 15. That last
>>hour was really hopping as a total of 44 meteors was recorded. Good thing I
>>was using a cassette recorder to record data or I would have never kept
>>up!
>>
>>November  19, 2004
>>
>>1000-1100 UT   1.00   6.57    3 AMO  1 ANT   10 LEO
>>                                              11 SPO   25  TOTAL
>>
>>1100-1200 UT   1.00   6.58    0 AMO  2 ANT   30 LEO
>>                                                5 SPO   37  TOTAL
>>
>>1200-1300 UT   1.00   6.59    1 AMO  0 ANT   28 LEO
>>                                              15 SPO   44 TOTAL
>>
>>TOTALS:           3.00   6.58    4 AMO  3 ANT   68 LEO
>>                                              31 SPO  106  TOTAL
>>
>>The first column gives the period watched in Universal Time (UT)
>>which is PST + 8 hours. The second column gives the percent of that
>>particular hour actually spent observing the sky (1.00 = 100%, 0.99
>>= 99%). Time is lost for breaks and plotting. No breaks were taken
>>tonight. A cassette recorder was used for data entry during this session.
>>The third column gives the average limiting magnitude estimated during
>>each period. The last several columns list the activity for expected active
>>radiants during each period. Quite often no activity is observed and rates
>>equal zero. Tonight I was facing east with my field of view centered at
>> 50 degrees altitude. AMO = Alpha Monocerotids. ANT = Antihelion
>> radiant (Taurids), LEO = Leonids and SPO = Sporadics (random activity).
>>
>>Location: Alpine Viewpoint 116 40' W  32 50' N,  Elevation = 850m
>>
>>Bortle Scale Estimate: Class 4: Rural / Suburban Transition
>>
>>Beginning Temperature/Relative Humidity: 50 F (10 C) 64%
>>Ending              "               "             "        48 F (9 C) 66%
>>
>>MAGNITUDES OF INDIVIDUAL METEORS PER RADIANT:
>>
>>AMO:  0 (0)  +1 (1) +2 (1) +3 (1) +4 (1) +5 (0)  AVG: +2.50
>>ANT :  0 (0)  +1 (2) +2 (1) +3 (0) +4 (0) +5 (0)  AVG: +1.33
>>LEO:  -3 (1)  -2 (1)  -1 (4)  0 (5) +1 (12) +2 (15)
>>          +3 (10) +4 (13) +5 (7) +6 (0)                    AVG: +2.21
>>SPO:   0 (2) +1 (4) +2 (4) +3 (7) +4 (8) +5 (6)   AVG: +3.06
>>
>>Bob Lunsford
>>San Diego, CA USA
>>
>>
>>
>>---
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>>    
>>
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