[OpenMadrigal-developers] PACE coordinates

[William Rideout]

Shunrong Zhang wrote:

> As a general rule, if PACE longitude is not available for converting PACE
> coordinates to geodetic coordinates, we may have to assume the missing
> longitude equals to the site's PACE longitude. (We need to be certain the
> change in altitude from 0 to 300 km results in a small change in PACE
> longitude).
> 

Shunrong,

Madrigal by design can't have site-specific logic such as defaulting to 300 km 
altitude for Sondrestrom.  If you need some site-specific logic, we'll need to 
write it just for you to process the data after its been taken from Madrigal.

Defaulting to the position of the instrument is fine however, and I can make 
Madrigal get PACE longitude for instrument location. I did calculate the PACE 
longitude for Sondrestrom at 300 km (41.03 degrees) and 0 km (41.63 degrees). 
Let me know whether this difference is too large for you.

Bill


-- 
Bill Rideout
MIT Haystack Observatory
Email: brideout at haystack.mit.edu
Phone: 781 981-5624