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From: craig.markwardt@gmail.com
Subject: XMM interactive analysis - fail to retrieve counts for source
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Date: Thu, 16 May 2019 16:19:07 +0200
From: craig.markwardt@gmail.com
To: xmmhelp@sciops.esa.int
Subject: XMM interactive analysis - fail to retrieve counts for source
Full_Name: Craig Markwardt
Submission from: (NULL) (193.147.152.102)


Trying to use the web interactive analysis on the XMM website.  Job
20190515225946.  Obsid 0727760201. EPIC PN.

I have selected source and background regions of a faint source, carefully
avoiding the bright source RX J1856 in the field of view.  When the spectrum is
delivered by "RISA" there are no counts in the spectrum. Perfect background
spectrum.  However, I know that there is a faint source there with 10s of
counts.

The web analysis system does not save the regions I used in the log file, but
the green source region was centered at 18:56:33,-37:54:03 radius 20", and the
orange background region was to the upper left quadrant of the small window
readout, about 40" radius.

When I pull an image using 900-100 eV, the faint source is clearly there at my
stated coordinates with about 30 counts in it, distinct from RX J1856 nearby. 
So where did my source go???

Craig



Reply 1

Resend
From: Ignacio de la Calle <xmmhelp@sciops.esa.int>
To: craig.markwardt@gmail.com
Subject: Re: XMM interactive analysis - fail to retrieve counts for source (PR#84947)
Date: Fri May 17 09:49:28 2019
Dear Craig,

We have tried to extract the spectrum of this faint source and did not have any

problems. I am not sure I understand all your steps, but when we use RISA,
select
the source region you use and select the 900-1000 eV range, we are able to get
the spectrum of the source. We have looked at your logs and the only thing we
dont
see is the filtering by energy step. Could you please try again selecting the 
900-1000 eV range in the interface ?

Regards,

Ignacio de la Calle
XMM-Newton SOC

> Trying to use the web interactive analysis on the XMM website.  Job
> 20190515225946.  Obsid 0727760201. EPIC PN.
> 
> I have selected source and background regions of a faint source, carefully
> avoiding the bright source RX J1856 in the field of view.  When the
spectrum
is
> delivered by "RISA" there are no counts in the spectrum. Perfect
background
> spectrum.  However, I know that there is a faint source there with 10s of
> counts.
> 
> The web analysis system does not save the regions I used in the log file,
but
> the green source region was centered at 18:56:33,-37:54:03 radius 20", and
the
> orange background region was to the upper left quadrant of the small
window
> readout, about 40" radius.
> 
> When I pull an image using 900-100 eV, the faint source is clearly there at
my
> stated coordinates with about 30 counts in it, distinct from RX J1856
nearby.

> So where did my source go???
> 
> Craig
> 
> 
> 


Followup 1

Compose reply
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From: Craig Markwardt <craig.markwardt@gmail.com>
Date: Fri, 17 May 2019 10:27:58 -0400
Subject: Re: XMM interactive analysis - fail to retrieve counts for source (PR#84947)
To: Ignacio de la Calle <xmmhelp@sciops.esa.int>
--00000000000015137a0589163187
Content-Type: text/plain; charset="UTF-8"

Hi, thanks for your reply.

I would like a full spectrum.  I only used 900 to 1000 eV to verify the
presence of the faint source in the image.    Now I want to measure the
broad-band spectrum.
When you look at the spectrum output by my job, do you agree that the
source was not selected?  (i.e. ~zero counts?)

On Fri, May 17, 2019 at 3:53 AM Ignacio de la Calle
<xmmhelp@sciops.esa.int>
wrote:

> Dear Craig,
>
> We have tried to extract the spectrum of this faint source and did not
> have any
>
> problems. I am not sure I understand all your steps, but when we use RISA,
> select
> the source region you use and select the 900-1000 eV range, we are able to
> get
> the spectrum of the source. We have looked at your logs and the only thing
> we
> dont
> see is the filtering by energy step. Could you please try again selecting
> the
> 900-1000 eV range in the interface ?
>
> Regards,
>
> Ignacio de la Calle
> XMM-Newton SOC
>
> > Trying to use the web interactive analysis on the XMM website.  Job
> > 20190515225946.  Obsid 0727760201. EPIC PN.
> >
> > I have selected source and background regions of a faint source,
> carefully
> > avoiding the bright source RX J1856 in the field of view.  When the
> spectrum
> is
> > delivered by "RISA" there are no counts in the spectrum. Perfect
> background
> > spectrum.  However, I know that there is a faint source there with 10s
of
> > counts.
> >
> > The web analysis system does not save the regions I used in the log
> file, but
> > the green source region was centered at 18:56:33,-37:54:03 radius 20",
> and
> the
> > orange background region was to the upper left quadrant of the small
> window
> > readout, about 40" radius.
> >
> > When I pull an image using 900-100 eV, the faint source is clearly
there
> at
> my
> > stated coordinates with about 30 counts in it, distinct from RX J1856
> nearby.
>
> > So where did my source go???
> >
> > Craig
> >
> >
> >
>
> 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).
>
>
>

--00000000000015137a0589163187
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Hi, thanks for your reply.=C2=A0
<br></div><div><br><=
/div><div>I would like a full spectrum.=C2=A0 I only used 900 to 1000
eV to=
 verify the presence of the faint source in the image. =C2=A0=C2=A0 Now I w=
ant to measure the broad-band spectrum.<br></div><div>When you
look at the =
spectrum output by my job, do you agree that the source was not selected?=
=C2=A0 (i.e. ~zero counts?)<br></div></div><br><div
class=3D"gmail_quote"><=
div dir=3D"ltr" class=3D"gmail_attr">On Fri, May 17, 2019 at 3:53 AM Ignaci=
o de la Calle &lt;<a
href=3D"mailto:xmmhelp@sciops.esa.int">xmmhelp@sciops.=
esa.int</a>&gt; wrote:<br></div><blockquote
class=3D"gmail_quote" style=3D"=
margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-lef=
t:1ex">Dear Craig,<br>
<br>
We have tried to extract the spectrum of this faint source and did not have=
 any<br>
<br>
problems. I am not sure I understand all your steps, but when we use RISA,<=
br>
select<br>
the source region you use and select the 900-1000 eV range, we are able to =
get<br>
the spectrum of the source. We have looked at your logs and the only thing =
we<br>
dont<br>
see is the filtering by energy step. Could you please try again selecting t=
he <br>
900-1000 eV range in the interface ?<br>
<br>
Regards,<br>
<br>
Ignacio de la Calle<br>
XMM-Newton SOC<br>
<br>
&gt; Trying to use the web interactive analysis on the XMM website.=C2=A0 J=
ob<br>
&gt; 20190515225946.=C2=A0 Obsid 0727760201. EPIC PN.<br>
&gt; <br>
&gt; I have selected source and background regions of a faint source, caref=
ully<br>
&gt; avoiding the bright source RX J1856 in the field of view.=C2=A0 When t=
he spectrum<br>
is<br>
&gt; delivered by &quot;RISA&quot; there are no counts in the
spectrum. Per=
fect background<br>
&gt; spectrum.=C2=A0 Howe

Message of length 6551 truncated


Reply 2

Resend
From: Ignacio de la Calle <xmmhelp@sciops.esa.int>
To: craig.markwardt@gmail.com
Subject: Re: XMM interactive analysis - fail to retrieve counts for source (PR#84947)
Date: Fri May 17 16:40:52 2019
Dear Craig,

The source spectrum that we see has counts. It seems to be fine. The header
contains the right selection expressions.

Thanks,

Ignacio de la Calle
XMM-Newton SOC


> --00000000000015137a0589163187
> Content-Type: text/plain; charset="UTF-8"
> 
> Hi, thanks for your reply.
> 
> I would like a full spectrum.  I only used 900 to 1000 eV to verify the
> presence of the faint source in the image.    Now I want to measure the
> broad-band spectrum.
> When you look at the spectrum output by my job, do you agree that the
> source was not selected?  (i.e. ~zero counts?)
> 
> On Fri, May 17, 2019 at 3:53 AM Ignacio de la Calle
<xmmhelp@sciops.esa.int>
> wrote:
> 
>> Dear Craig,
>>
>> We have tried to extract the spectrum of this faint source and did not
>> have any
>>
>> problems. I am not sure I understand all your steps, but when we use
RISA,
>> select
>> the source region you use and select the 900-1000 eV range, we are able
to
>> get
>> the spectrum of the source. We have looked at your logs and the only
thing
>> we
>> dont
>> see is the filtering by energy step. Could you please try again
selecting
>> the
>> 900-1000 eV range in the interface ?
>>
>> Regards,
>>
>> Ignacio de la Calle
>> XMM-Newton SOC
>>
>> > Trying to use the web interactive analysis on the XMM website. 
Job
>> > 20190515225946.  Obsid 0727760201. EPIC PN.
>> >
>> > I have selected source and background regions of a faint source,
>> carefully
>> > avoiding the bright source RX J1856 in the field of view.  When
the
>> spectrum
>> is
>> > delivered by "RISA" there are no counts in the spectrum. Perfect
>> background
>> > spectrum.  However, I know that there is a faint source there with
10s of
>> > counts.
>> >
>> > The web analysis system does not save the regions I used in the
log
>> file, but
>> > the green source region was centered at 18:56:33,-37:54:03 radius
20",
>> and
>> the
>> > orange background region was to the upper left quadrant of the
small
>> window
>> > readout, about 40" radius.
>> >
>> > When I pull an image using 900-100 eV, the faint source is clearly
there
>> at
>> my
>> > stated coordinates with about 30 counts in it, distinct from RX
J1856
>> nearby.
>>
>> > So where did my source go???
>> >
>> > Craig
>> >
>> >
>> >
>>
>> 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).
>>
>>
>>
> 
> --00000000000015137a0589163187
> Content-Type: text/html; charset="UTF-8"
> Content-Transfer-Encoding: quoted-printable
> 
> <div dir=3D"ltr"><div>Hi, thanks for your reply.=C2=A0
<br></div><div><br><=
> /div><div>I would like a full spectrum.=C2=A0 I only used 900 to
1000 eV to=
>  verify the presence of the faint source in the image. =C2=A0=C2=A0 Now I
w=
> ant to measure the broad-band
spectrum.<br></div><div>When you look at the =
> spectrum output by my job, do you agree that the source was not selected?=
> =C2=A0 (i.e. ~zero
counts?)<br></div></div><br><div
class=3D"gmail_quote"><=
> div dir=3D"ltr" class=3D"gmail_attr">On Fri, May 17, 2019 at 3:53 AM
Ignaci=
> o de la Calle <<a
href=3D"mailto:xmmhelp@sciops.esa.int">xmmhelp@sciops.=
> esa.int</a>> wrote:<br></div><blockquote
class=3D"gmail_quote" style=3D"=
> margin:0px 0px 0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-lef=
> t:1ex">Dear Craig,<br>
> <br>
> We have tried to extract the spectrum of this faint source and did not
have=
>  any<br>
> <br>
> problems. I am not sure I understand all your steps, but when we use
RISA,<=
> br>
> select<br>
> the source region you use and select the 900-1000 eV range, we are able to
=
> get<br>
> the spectrum of the source. We have looked at your logs and the only thing
=
> we<br>
> dont<br>
> see is the

Message of length 7575 truncated

Up to top level
AO15   AO16   AO17   AO18   AO19   Backgrounds   Calibration   Conference   Data   Docs   EPICMOS   EPICpn   Feedback   Gallery   Misc   OM   Pending   PhD_Theses   Publications   RGS   RadMonitor   SAS_Hardware   SAS_WS   SASv16.0   SASv16.0_Installation   SASv16.1   SASv16.1_Installation   SASv17.0   SASv17.0_Installation   SASv18.0   SASv18.0_Installation   SciSim   Simulators_other   Suggestions   Trash   Visibility   XMM-bouncing   XMM-news   XRPS   XSA   esas   incoming  

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