Action #538
Feature #536: Add HESS instrument response functions
Add HESS instrument classes
| Status: | Rejected | Start date: | 10/10/2012 | |
|---|---|---|---|---|
| Priority: | Normal | Due date: | ||
| Assigned To: | - | % Done: | 0% | |
| Category: | - | |||
| Target version: | - | |||
| Duration: |
Description
We have to add classes to query / interpolate the HESS CALDB in gammalib/inst/hess
I did not look at the existing code in inst/lat and inst/cta , but I presume implementing inst/hess is quite a bit of work and I’d be happy if someone else takes on this task.
Of course I’d be happy to help out and check what exactly is done in the HESS software.
The attached lookup tests scripts give an idea of the API of the lookup classes in the HESS software.
test_effArea.C 
(15.9 KB)
test_energyResolution.C
(3.68 KB)
test_PSF.C
(26.1 KB)
test_radialAcceptance.C
(4.97 KB)
Recurrence
No recurrence.
History
#1
Updated by Knödlseder Jürgen over 11 years ago
- Target version set to HESS sprint #1
#2
Updated by Knödlseder Jürgen over 11 years ago
We have to decide if we need specific HESS instrument classes, or if we think that we can manage everything with a single module. An alternative to this would be to create a IACT base class, and then implement the HESS, CTA, etc. interfaces as derived classes. This would considerably reduce the overhead for adding another IACT system to GammaLib.
So we have three options:- Handle CTA and HESS with a single instrument module
- Introduce a new HESS instrument module
- Convert the existing CTA module into an IACT module, and implement CTA and HESS specific modules as derived classes
I think Karl’s general idea was of having a event list data format that fits all IACTs. In this case, we would only need a single piece of software to deal with these events lists. The question is now: can we do the same for the instrument response functions. In other words: can we invent a sufficiently general response format that both fits HESS and CTA (and eventually also other IACTs.
Personally I believe we can, but we have to verify that this is indeed true. I think we should try to convert the existing HESS response functions into a general FITS format, and then implement the required software to access these response functions.
#3
Updated by Knödlseder Jürgen over 10 years ago
- Target version deleted (
HESS sprint #1)
#4
Updated by Knödlseder Jürgen almost 8 years ago
- Status changed from New to Rejected