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Re: LR Com Observations?
Doug, Tom and all,
It looks like it wasn't a bug in the query, just that the observations
in the database don't meet the criteria to be included in the statistics.
I find 11 pairs of images from Tom's #2 camera with could have included
this position. Of these, 9 of the pairs have problems with either the V
or I images (or both).
And in the remaining 2 pairs, there is a large discrepancy between the
number of stars detected in V vs. I.
For image JD 2452763.62887 - 2852 stars in V, 645 in I
For image JD 2452780.59346 - 2453 stars in V, 497 in I
As Tom said, perhaps a combination of clouds and bad luck.
Thomas Droege wrote:
> *We get down as far as 16 for some measurements. The biggest problem is
> for red stars where i is within limits but is dropped because v is not
> seen. Possibly this is just in an area that we have not covered yet.
> There is a pretty large area that has been covered only a few times.
> Data is coming. This is in the tom2 camera which has only been operting
> since about March. If RA 191 degreess has not been crossing the zenith
> during darkness since March then that is the reason. If it has, then I
> am mystified. Perhaps just bad luck cloud timing. *
> *Tom *
> ----- Original Message -----
> *From:* <mailto:DWest61506@aol.com>
> *To: *email@example.com
> *Sent:* 12/8/2003 5:22:38 PM
> *Subject:* Re: LR Com Observations?
> In a message dated 12/8/2003 12:15:12 PM Central Standard Time,
> firstname.lastname@example.org writes:
>> Looks like they are not there.
>> I looked in my big list and found just one measurement.
>> RA 191.2786
>> Dec 21.6598
>> Time 2452780.59346
>> V 11.77
>> I 11.25
>> The measurement was flagged with a 99 so it is suspect. I had to
>> to decimal degrees, so you get to convert back, but it is close.
>> There is
>> nothing else within 0.1 degree. I would not trust this
>> measurement because
>> of the flag.
> Thanks for the response. I won't use the one observation. I am a
> little confused, this star isn't in a crowded field and I thought
> TASS went down to about 13th mag in V. Why do you think this one
> didn't make into the database?
> Doug West
> P.S. Finder and phase plot at