On Tue, 22 Feb 2011, Tim Jenness wrote:
> On Feb 22, 2011, at 12:37 PM, Colin Aspin wrote:
>
>> Hi Luca,
>>
>> Question on what you just wrote:
>>
>> On Feb 22, 2011, at 12:30 PM, Luca Rizzi wrote:
>>
>>> If you give gaia the HH:MM:SS, DD:MM:SS format
>>> gaia does not perform any conversion apparently, and retrieves 132 objects from USNO. It then compares them with 55 sources extracted from the image, but fails to find a match.
>>>
>>> Bottom line is:
>>> HHMMSS, DDMMSS format works indeed (sorry for the confusion earlier).
>>>
>>
>> Why does gaia not find a match when using HH:MM:SS DD:MM:SS??
>>
>> Why do you say HHMMSS, DDMMSS format works? Seems like it doesn't?
>>
>>
>
> I assume he is saying that the HHMMSS DDMMSS formatting is decoded
> properly. The problem being that even though it gets 132 objects from
> the catalogue and 55 from the image it can't correlate them.
>
> Luca: Is gaia using "match" or ccdpack for the correlation?
The default in GAIA is MATCH, that is different from the AUTOASTROM
default which is to use FINDOFF.
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