Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/calibration/documentation/epic_cal_meetings/200102/sas_vs_xanadu-M_Cappi.pdf Дата изменения: Wed May 14 13:34:32 2014 Дата индексирования: Wed Apr 13 13:40:37 2016 Кодировка: Поисковые слова: ceres

A SAS/xmmselect/evselect versus XANADU/xselect/fselect comparison M. Cappi (ITeSRE - CNR; Bologna)

Outline: Comparison of extracting standard products through 1) Command lines (fselect vs. evselect) 2) GUIs Tools (flaunch vs sas) 3) Standard User-Interface Tools (xselect vs. xmmselect) XANADU-ftools:V5.0.1 SAS:V5.0 (Dec. 3rd)


Left: XANADU Commands parameters
actions

Command Lines

Right: SAS Commands parameters
actions

Extracting Lightcurves fselect
.evt ---> .evt PI, etc.

evselect
.evt ---> .ds

PI, binsize,etc.

lcurve
.evt ---> .qdp

binsize etc.

dsplot
.ds ---> .agr

(User-CPU)Time consumed: ~1.4 s Problems: Wrong Exposure
(~2%high) (=TSTOP-TSTART)

(User-CPU)Time consumed: ~11 s Problems: Grace less known/used
than QDP


Left: XANADU Commands parameters
actions

Command Lines

Right: SAS Commands parameters
actions

Extracting Images fselect
.evt ---> .evt .evt ---> .ds PATTERN, PI, etc.

evselect

PATTERN, PI, binsize, etc.

f2dhisto
.evt ---> .ima

binsize etc.

ds9

ds9 (User-CPU)Time consumed: ~5 s Problems: None found (User-CPU)Time consumed: ~19 s Problems: None found


Left: XANADU Commands parameters
actions

Command Lines

Right: SAS Commands parameters
actions

Extracting Spectra xselect @script
fselect .evt ---> .pi PATTERN, PI, region, etc.

evselect
.evt ---> .ds

PATTERN, PI, region, binsize, etc.

fmodhead
.pi ---> .pi

TLMAX1

fmodhead
.ds ---> .ds

TLMAX1

grppha

grppha

(User-CPU)Time consumed: ~30 s
counts ~1% larger due to different region extraction algorithm

(User-CPU)Time consumed: ~18 s Problems:
BACKSCAL wrong (always 3.6e5)

Problems:


Left: XANADU Commands flaunch GUIs Tools

Right: SAS Commands sas

Similar capabilities...(e.g both allow scripts); but of course SAS is mandatory for XMM


Left: XANADU
Commands

Right: SAS
Commands

Standard User-Interface/interactive Tools xselect (+ ximage, xronos) xmmselect

Currently, two advantages of xselect: already known to most users + allows easy scripts


The Standard User-Interface/interactive Tools is the most important for most GOs xselect Beginners
Typing is not easy, but already known + easy to "save" Scripts are user-friendly (extract curve, plot image...)

xmmselect
Clicking is easy, but not known + impossible to "save" Scripts are user-UNfriendly (#!/usr/bin/sh ...+ very long strings of commands) Scripts are powerfull but commands are slower

Typical



Experts



Scripts are powerfull + commands are fast

My suggestion is: We shall really add "xmmselect logging" (for beginners) or/and "xmmselect scripting" (for typical&experts) output or/and make file scripts (for standard analysis) available to GO community.