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VSP API, requesting a standard field using the RESTful interface

han.k
Affiliation
American Association of Variable Star Observers (AAVSO)
Tue, 05/23/2023 - 16:31

My program ASTAP can request variable stars form VSP API. I have noted that the Landolt stars are excluded from the normal request:

E.g. I can request:

https://app.aavso.org/vsp/api/chart/?format=json&ra=234.585565&dec=-0.223278&fov=120&maglimit=99.0000

and get AUID as

auid: "000-BMN-608"

but not the Landolt stars.

 

To  get the Landolt stars I have to add "&special=std_field"

https://app.aavso.org/vsp/api/chart/?format=json&ra=234.585565&dec=-0.223278&fov=120&maglimit=99.0000&special=std_field

auid: "000-BJZ-198"

but the normal auid's  are missing.

 

Is there a way to get both the BMN and BZJ auid's in one request??

Thanks in advance,

Han

Note I have send the same question three days ago to aavso@aavso.org as indicated in the bottom of the VSP API page.

 

 

han.k
Affiliation
American Association of Variable Star Observers (AAVSO)
Wed, 05/31/2023 - 13:23
I got an answer from AAVSO…

I got an answer from AAVSO staff:

Based on how the system is currently set up, the answer is no. You need to do 2 queries because the std_fields is a database flag and turning it on will only retrieve values with that flag. Normally this is fine because people looking for landolt standards are doing so for the specific purpose of calibrating their equipment and are not interested in the comparison stars. Is there a specific reason you need both of these together? It is something that could theoretically be accomplished in the future if there was sufficient need.

So the question is answered.