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From: anoel@oa.uj.edu.pl
Subject: Timing mode data
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Date: Fri, 24 May 2019 10:35:54 +0200
From: anoel@oa.uj.edu.pl
To: xmmhelp@sciops.esa.int
Subject: Timing mode data
Full_Name: Angel Noel
Submission from: (NULL) (193.147.152.102)


I am following this link-
https://heasarc.gsfc.nasa.gov/docs/xmm/abc/node10.html#SECTION001040000000000000000
 to analyse the timing mode data from EPIC-pn. This doesnt't give the method of
extraxting background lightcurve. I tried to produce the background lightcurve
by the same method as to extract the background spectrum but with the following
command-
evselect table=event.fits energycolumn=PI
expression='#XMMEA_EP&&(PATTERN<=4)&&
(RAWX in [21:27])&& (PI in [2000:10000])' withrateset=yes
rateset="PN_light_curve_background_high.lc" timebinsize=100 maketimecolumn=yes
makeratecolumn=yes

Am I doing it right? Is the pileup also to be removed in the same way as given
in this link? When I check the clean image it shows 1 or max four photons
throughout. I'm not confident about it.

Regards,
Angel


Reply 1

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From: Jacobo Ebrero <xmmhelp@sciops.esa.int>
To: anoel@oa.uj.edu.pl
Subject: Re: Timing mode data (PR#84973)
Date: Fri May 24 11:09:23 2019
Dear Angel,

To extract spectra taken in Timing mode we suggest that you have a look at the
step-by-step recipe in this thread:

https://www.cosmos.esa.int/web/xmm-newton/sas-thread-pn-spectrum-timing

More generally, you may also find other recipes and examples that may be useful
for you in the SAS analysis threads here:

https://www.cosmos.esa.int/web/xmm-newton/sas-threads

Please do not hesitate in contacting us again should you have further problems.

Best regards,
Jacobo

----------------------
Dr. Jacobo Ebrero
XMM-Newton SOC
Community Support and Scientific Planning Team


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Date: Fri, 24 May 2019 11:32:03 +0200
Subject: Re: Timing mode data (PR#84973)
From: anoel@oa.uj.edu.pl
To: "Jacobo Ebrero" <xmmhelp@sciops.esa.int>
Dear Jacobo,
I wish to generate lightcurve and not spectrum of the timing mode data.
How to remove the piling affects in lightcurve and extract the background
lightcurve?

Regards,
Angel

> Dear Angel,
>
> To extract spectra taken in Timing mode we suggest that you have a look=
 at
> the
> step-by-step recipe in this thread:
>
> https://www.cosmos.esa.int/web/xmm-newton/sas-thread-pn-spectrum-timing
>
> More generally, you may also find other recipes and examples that may b=
e
> useful
> for you in the SAS analysis threads here:
>
> https://www.cosmos.esa.int/web/xmm-newton/sas-threads
>
> Please do not hesitate in contacting us again should you have further
> problems.
>
> Best regards,
> Jacobo
>
> ----------------------
> Dr. Jacobo Ebrero
> XMM-Newton SOC
> Community Support and Scientific Planning Team
>
> This message is intended only for the recipient(s) named above. It may
> contain proprietary information and/or
> protected content. Any unauthorised disclosure, use, retention or
> dissemination is prohibited. If you have received
> this e-mail in error, please notify the sender immediately. ESA applies
> appropriate organisational measures to protect
> personal data, in case of data privacy queries, please contact the ESA
> Data Protection Officer (dpo@esa.int).
>
>




Reply 2

Resend
From: Jacobo Ebrero <xmmhelp@sciops.esa.int>
To: anoel@oa.uj.edu.pl
Subject: Re: Timing mode data (PR#84973)
Date: Fri May 24 12:47:45 2019
Dear Angel,

For the pile-up correction you can have a look here to assess how much piled-up
is your source:

https://www.cosmos.esa.int/web/xmm-newton/sas-thread-epatplot

and, in particular, to deal with pile-up in observations taken in Timing mode
here:

https://xmm-tools.cosmos.esa.int/external/xmm_user_support/documentation/sas_usg/USG/epicpileuptiming.html

Once your data have been corrected for pile-up (if necessary) you may proceed to
extract the lightcurve. Some general recipes are provided here:

https://www.cosmos.esa.int/web/xmm-newton/sas-thread-timing

Best regards,
Jacobo

----------------------
Dr. Jacobo Ebrero
XMM-Newton SOC
Community Support and Scientific Planning Team

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