(meteorobs) Meteor Obs. 9/12/15 - Mathias, WVa

george gwgliba at gmail.com
Sat Sep 12 14:47:15 EDT 2015


Meteor Observers,

Of course, I meant [video], radar, and visual observers in the last sentence of the
second paragraph.  There is some evidence that the peak for the SAT may be 
tonight, but I am not sure until I check for leap year dates.  Activity from this area
should only last a few days.

GWG


On Sep 12, 2015, at 2:29 PM, george <gwgliba at gmail.com> wrote:

>         Screech Owl Hill Observatory,  Mountain Meadows  
>                  Mathias, West Virginia - Sept. 12, 2015  
> 
> Conditions were good this morning, so I decided to do more meteor
> observing from 4:16 to 6:16 UT.   There were no meteors that were 
> brighter than 1st magnitude. There was a good showing for the SPE
> meteors, and the September Alpha Triangulids (SAT), which don’t 
> seem to be annual, but periodic, with a period of 5 or 6 years according
> to Gary W. Kronk, and I agree. They last put on a fair showing in 2009.
> Last year the moon was nearly Full for this date; so I didn’t observe.
> 
> They seem to be medium-fast meteors, and possibly part of a complex.
> A casual meteor was seen from Alpha Aries earlier, and another from Beta
> Triangulii (BTR) the first hour, but I counted it as a Sporadic.  Other years 
> I saw a few BTR meteors. I first noticed the BTR meteors back in 1994, but 
> didn’t include them in my totals separately.  On September 11/12, 1998 the 
> Japanese meteor observer Osada Kazuhiro plotted 9 meteors from the BTR
> area from 14:15 to 16:30 UT, according to the Minor Meteor Shower Circular 
> #57, from Japan.  I think visual, radar, and visual meteor observers should 
> look for meteors from this region from last night and tonight.  
> 
> Date     Time (UT)   LM   %Obst.     FOV   
> 9/12/15  4:16-5:16    6.5       0%     1.3+60   
> STA  SAT  SIC  SPE  ORI  SLY  SPO  Total  
>  2       2      1      3       1       1      7        17
> 
> Date     Time (UT)   LM   %Obst.     FOV   
> 9/12/15  5:16-6:16    6.4       5%     2.3+60   
> STA  SAT  SIC  SPE  ORI  SLY  SPO  Total  
>  2       3      1      3       1       1      9        20
> 
> Magn. Distributions Sept. 12, 2015 - 04:16-06:16 UT - LM=6.45 
>        1   2   3   4   5   Total   Ave.
> STA  1   0   2   0   1     4      3.0
> SAT  1   1   2   0   1     5      2.8
> SIC   0   0   1   1   0     2      3.5
> SPE  2   0   1   1   2     8      3.2
> ORI   1   0   1   0   0     2      2.0
> SLY   1   0   0   1   0     2      2.5
> SPO  3   2   3   3   5   16      3.3
> 
> Starry Skies,
> GWG
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