Pyfits getdata
![pyfits getdata pyfits getdata](https://i1.rgstatic.net/publication/233763996_Bayesian_inference_of_T_Tauri_star_properties_using_multi-wavelengthsurvey_photometry/links/0f31752fe4005a55c0000000/largepreview.png)
Use a high order like 8 or 9 to get a hi-res view of the sky, but beware of very large output datasets. Note also the Healpix output option, which has the advantage of being uniform on the sky, essential if you want to study high latitudes. Re dlong =0.1 and dlat=0.1, those parameters are valid: Webrun does not have them but it should be changed to allow any value.
![pyfits getdata pyfits getdata](https://www.astro.umd.edu/~teuben/python/groningen-python_files/fftdemofig.jpg)
(There should be an option to allow the user to enter any parameters overriding validations, but I don't know if that is available yet). Similarly dlong negative should work, but it not allowed in current menu, and this needs changing. When enabled it should work although I have not tested it with the current version. You could try -180 to 180 (or -179.5 to +179.5), but for some reason this is not allowed in the current menu. fv indeed the GC is at the edge, but more advanced display tools can centre it anywhere.Īpart from that, GALPROP has the parameters long_min, long_max which default to 0 and 360 (actually 0.5 and 359.5 since they are bin-centres for 1.0 deg bins). Where the image is centred depends on the plotting software. Since the format is FITS, the start of the longitude axis it arbritrary and was chosen as l=0 for simplicity.