pnspectra will choke on a provided region text file longer than 1024 characters

[joshuaekingsbury]

Equivalent to about 18 circular regions with current unnecessary 10-point precision of radius size of circles, 2-point x/y det coords, and including white space characters.

Previous region selection strings used for spatially resolved spectroscopy were all under 900 characters, so I did not face this issue with previous selection expressions output from this script.

For now, seeing if 18-circle limit works okay.

[joshuaekingsbury]

[...]

** evselect: error (SyntaxError), (PATTERN<=0)&&(FLAG == 0)&&((DETX,DETY) in BOX(-2196,-1110,16060,15510,0))&&((CCDNR == 1)||(CCDNR == 2)||(CCDNR == 3)||(CCDNR == 4)||(CCDNR == 5)||(CCDNR == 6)||(CCDNR == 7)||(CCDNR == 8)||(CCDNR == 9)||(CCDNR == 10)||(CCDNR == 11)||(CCDNR == 12))&&!((DETX,DETY) IN circle(-24.2,-259.0,3839.9399999692)||(DETX,DETY) IN circle(-1637.6,-5818.3,678.0199967945)||(DETX,DETY) IN circle(2950.2,-4270.6,431.9999999965)||(DETX,DETY) IN circle(2985.9,-7249.7,931.6999943925)||(DETX,DETY) IN circle(-4715.5,4970.6,431.9999999965)||(DETX,DETY) IN circle(-4419.5,4435.1,431.9999999965)||(DETX,DETY) IN circle(-5397.2,6338.1,431.9999999965)||(DETX,DETY) IN circle(-5454.6,7074.3,431.9999999965)||(DETX,DETY) IN circle(-4605.1,8447.2,431.9999999965)||(DETX,DETY) IN circle(-8561.6,10314.7,431.9999999965)||(DETX,DETY) IN circle(-11361.4,5009.7,431.9999999965)||(DETX,DETY) IN circle(1423.1,14285.3,1037.6399951916)||(DETX,DETY) IN circle(6789.2,12021.4,299.9999951976)||(DETX,DETY) IN circle(9059.9,11237.5,613.4999975950)||(DETX,DETY) IN circle(8804.9,9499.7,469.6999991962)||(DETX,DETY) IN circle(7217.6,5961.8,688.9799951944)||(DETX,DETY) IN circle(-272.1,-14745.3,566.2199951954)||(DETX,DETY) IN circle(-167.0,-15675.4,739.0999943940)||(DETX,DETY) IN circle(-5559.0,-11262.1,359.99&&((DETX,DETY) IN circle(-2200,-1110,17980))&&region(pnS003-bkgregtdet.fits)
^ parse error
Syntax error in expression: '(PATTERN<=0)&&(FLAG == 0)&&((DETX,DETY) in BOX(-2196,-1110,16060,15510,0))&&((CCDNR == 1)||(CCDNR == 2)||(CCDNR == 3)||(CCDNR == 4) [...]'

Provided region selection string here is truncated at 1024 characters before next condition is appended:

&&!((DETX,DETY) IN circle(-24.2,-259.0,3839.9399999692)||(DETX,DETY) IN circle(-1637.6,-5818.3,678.0199967945)||(DETX,DETY) IN circle(2950.2,-4270.6,431.9999999965)||(DETX,DETY) IN circle(2985.9,-7249.7,931.6999943925)||(DETX,DETY) IN circle(-4715.5,4970.6,431.9999999965)||(DETX,DETY) IN circle(-4419.5,4435.1,431.9999999965)||(DETX,DETY) IN circle(-5397.2,6338.1,431.9999999965)||(DETX,DETY) IN circle(-5454.6,7074.3,431.9999999965)||(DETX,DETY) IN circle(-4605.1,8447.2,431.9999999965)||(DETX,DETY) IN circle(-8561.6,10314.7,431.9999999965)||(DETX,DETY) IN circle(-11361.4,5009.7,431.9999999965)||(DETX,DETY) IN circle(1423.1,14285.3,1037.6399951916)||(DETX,DETY) IN circle(6789.2,12021.4,299.9999951976)||(DETX,DETY) IN circle(9059.9,11237.5,613.4999975950)||(DETX,DETY) IN circle(8804.9,9499.7,469.6999991962)||(DETX,DETY) IN circle(7217.6,5961.8,688.9799951944)||(DETX,DETY) IN circle(-272.1,-14745.3,566.2199951954)||(DETX,DETY) IN circle(-167.0,-15675.4,739.0999943940)||(DETX,DETY) IN circle(-5559.0,-11262.1,359.99

[joshuaekingsbury]

Reduced unnecessary radius precision. Should be able to get ~22 circle regions now @ ~45 chars per circle region

[joshuaekingsbury]

A 940 char txt file of 21 circle regions worked without crashing pnspectra/evselect.

[...] evselect:- Executing (routine): evselect table=pnS003-allevc.fits:EVENTS filteredset=filtered.fits withfilteredset=yes keepfilteroutput=yes flagcolumn=EVFLAG flagbit=-1 destruct=yes dssblock='' expression='(PATTERN<=0)&&(FLAG == 0)&&(PI in [350:1100])&&((CCDNR == 1)||(CCDNR == 2)||(CCDNR == 3)||(CCDNR == 4)||(CCDNR == 5)||(CCDNR == 6)||(CCDNR == 7)||(CCDNR == 8)||(CCDNR == 9)||(CCDNR == 10)||(CCDNR == 11)||(CCDNR == 12))&&((DETX,DETY) in BOX(-2196,-1110,16060,15510,0))&&!((DETX,DETY) IN circle(6789.2,12021.4,299)||(DETX,DETY) IN circle(-5559.0,-11262.1,359)||(DETX,DETY) IN circle(-9782.3,-6438.3,359)||(DETX,DETY) IN circle(-13701.4,-5013.2,428)||(DETX,DETY) IN circle(-14892.4,-282.4,359)||(DETX,DETY) IN circle(-14120.8,2117.8,359)||(DETX,DETY) IN circle(-148.8,-15098.8,1282)||(DETX,DETY) IN circle(7335.2,14160.8,431)||(DETX,DETY) IN circle(4805.1,-3459.5,431)||(DETX,DETY) IN circle(-12554.5,-11197.4,1197)||(DETX,DETY) IN circle(-24.2,-259.0,3839)||(DETX,DETY) IN circle(2985.9,-7249.7,931)||(DETX,DETY) IN circle(-1637.6,-5818.3,678)||(DETX,DETY) IN circle(7217.6,5961.8,688)||(DETX,DETY) IN circle(1423.1,14285.3,1037)||(DETX,DETY) IN circle(-5349.8,6578.3,850)||(DETX,DETY) IN circle(-4607.8,4644.9,932)||(DETX,DETY) IN circle(4964.6,-2193.3,534)||(DETX,DETY) IN circle(-4265.9,-816.8,551)||(DETX,DETY) IN circle(6657.2,-8203.0,549)||(DETX,DETY) IN circle(-5403.7,-1683.9,676))&&((DETX,DETY) IN circle(-2200,-1110,17980))&&region(pnS003-bkgregtdet.fits)' filtertype=expression [...]

[joshuaekingsbury]

Thought I should note I'm currently working with SAS v21.0

[joshuaekingsbury]

Was able to run pnspectra successfully on ~7 observations after reducing custom regions selected such that resulting selection string for each was under 1024 characters.

[joshuaekingsbury]

Ticket submitted by email to XMM-NEWTON HELPDESK.

Error was briefly described, links were shared to this repo/issue thread, and request was made for a way to increase string length of selection expression in region file that pnspectra/mosspectra will accept without truncating.