Forum der Vereinigung der Sternfreunde

Hello together,

here our instrumental luggage waiting for transportation.
The coming night we are going to Tenerife. Perhaps we'll give first signals from Teide tomorrow in the evening, I hope so.



Herzliche Grüße

Lothar

www.astrospectroscopy.eu
www.spectrosphere.de





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Bon voyage!

Hello,

Lothar, Daniel Weiss, Dalila, my wife and I we arrived today at the Inzana Observatory . We have absolute clear and very dark sky. Tomorow we Start the installation of my eShel Spe trograph Form Shelyak at the IAC 80. I hope, we can deliver Fiat eShelspecta at sunday...for the first, I shall take spectra from dela scorpii and 66 ophiuchi . Which other stars are proposed, for first tests except the program stars?


18.5 2013

We were odered to be at 9:00 am at the observatory, at 10:00 arrived someone and we could start the installation of the eShel The aluplate I machined is perfect. But we have mo tungsten light in the calibration unit. We have had much to do, to find out the reason. The very,very friendly staff of the IAC 80 helped us some hours(!!). The reason: the tungstenlamp is defect. So we can not make tungsten flats.......a big problem. Thomas please contact Olivier or François . They must send us so fast as possible such a lamp to the Teide. I think you can organize this.

The next problem is, Lothars laptop and the software on it will not Match with my NovaCCD. I installed the correct program to drive the NOVACCD but there was some problems with Administrator rights and so on. In my hands the NOVACCD was working with se software I installed. After this Lothar took the laptop bck to Mannheim and has done some changes with this laptop . The effect : the Nova will not run with the software on Lothars laptop. I have no installation CCD with me. So we have to contact Gerhard Fischer, I have done this by email already but perhaps, Thomas, could you try to phone with ihm? He have to send us the installion files per email for my NOVACCD 3200 . That is very urgend! If we have no running pc software and no callibration unit....the campaign is in danger.


Cheers
Berthold

I have an installation CD for my Sigma-403, that I believe supports the Sigma-3200 camera as well. Does this sound good?I will put it online in my Dropbox account (it will take a while) and then provide the link.
If you do not want or need it, then I will remove it later.
I will return soon with details about driver versions and software dates, and so on..


Cheers,





On Sat, May 18, 2013 at 4:13 PM, Berthold Stober )fg-spek-convento(==>)vds-astro.de ([email]fg-spek-convento(==>)vds-astro.de[/email]))> wrote:
: Hello,

Lothar, Daniel Weiss, Dalila, my wife and I we arrived today at the Inzana Observatory . We have absolute clear and very dark sky. Tomorow we Start the installation of my eShel Spe trograph Form Shelyak at the IAC 80. I hope, we can deliver Fiat eShelspecta at sunday...for the first, I shall take spectra from dela scorpii and 66 ophiuchi . Which other stars are proposed, for first tests except the program stars?


18.5 2013

We were odered to be at 9:00 am at the observatory, at 10:00 arrived someone and we could start the installation of the eShel The aluplate I machined is perfect. But we have mo tungsten light in the calibration unit. We have had much to do, to find out the reason. The very,very friendly staff of the IAC 80 helped us some hours(!!). The reason: the tungstenlamp is defect. So we can not make tungsten flats.......a big problem. Thomas please contact Olivier or François . They must send us so fast as possible such a lamp to the Teide. I think you can organize this.

The next problem is, Lothars laptop and the software on it will not Match with my NovaCCD. I installed the correct program to drive the NOVACCD but there was some problems with Administrator rights and so on. In my hands the NOVACCD was working with se software I installed. After this Lothar took the laptop bck to Mannheim and has done some changes with this laptop . The effect : the Nova will not run with the software on Lothars laptop. I have no installation CCD with me. So we have to contact Gerhard Fischer, I have done this by email already but perhaps, Thomas, could you try to phone with ihm? He have to send us the installion files per email for my NOVACCD 3200 . That is very urgend! If we have no running pc software and no callibration unit....the campaign is in danger.


Cheers
Berthold









--
Fil.



Fil.

Now, the 200 micron fiber from Shelyak is broken too,,,,!!! That is total bad. I have nothing done with this fiber . I put it away form the fiber injektion and from the callibrationunit . Then I put it in the transport case. Today we took the fiber out of the transport case and connected it with the fiberinjection and the calibrationunit. And then..........no light!! It is really not funny with this fibers from Shelyak, I am rather disapointed........

Berthold

I can?t start my surveys as I?ve run into a problem with the eShel ... looks like it could be a calibration fibre-optic cable problem

Hi all,

I have started analyzing the data with ISIS.
Some comments:
- The spectra look much better than two days ago, well centered and correct intensities. Because of the centering some parameters had to be adjusted (X, Y, alpha, def_lambda). I will put the new values on the FTP server
- For analysis with ISIS the camera should be rotated somewhat (about 1 degree) so that the ThAr lines line up with the precalculated values, see the image below:
The circle should align with the spectral line!
- I cannot make an instrument response since I have no data on Mizar e.g.
- All the test spectra mentioned in the monday protocol are missing on the FTP server but necessary for the checks if the spectra can be analyzed properly. P Cyg and bet Lyr are not suitable for the determination of the response.
- It would be nice to have a spectrum of zet Aql for checking the instrument response. Should not take too long to make!
- There are still some problems with the ripple after merging the orders, as seen in a spectrum of P Cyg.
- There is a small problem with ISIS when averaging 10 bias frames, so I used only 9. I will check with Christian about this.

Apart from this the analysis of the spectra works well.
To finish a preliminary spectrum of WR140, again without instrument response corrected

Keep going and clear skies,

Martin

Hi all,

The data look great so far from looking at the bet Lyr reduced spectrum
and a quick examination of the raw WR data from last night, I'll be
working on writing a basic reduction code here at UdeM for the Teide data
over the next few days. Once we can look at the data directly reduced, I'll give better guidance for exposure time based upon the S/N. Please remember to observe these stars several times throughout the night (probably can get 2 or 3 each per night now, increasing as the campaign goes on into summer.)

A few comments:

Please observe a ThAr lamp before and after each science exposure. If you
sit on a star for an hour (with sub-exposures), please do one in the
middle.

We only need one set of darks per night - with exposures of 30 minutes
(see my data acquisition webpage). We can't use short
darks of an exposure shorter than the science stars very well. I outlined our
request for each night at that site, please use these.

We don't understand why the team can't observe the LBV supplemental targets. This seems unusual
to me - yes they will be southern targets, but my reading of the 0.8m
website indicates that there is a telescope parking position at -40dec,
further south than these stars. Please explain!

For the other amateurs involved. Please let me know when you take data,
and I will send you an ftp account for the data to come here to Montreal.
We need to reduce all of the nights of data ourselves to keep everything
reduced uniformly.

Lastly, we were discussing this earlier here at UdeM. WR 140 is a
fascinating system, but it shows little interesting variability this
summer, because the binary is not near periastron.

looking at the target stars and not WR 140 this summer for those of you at

Please spend time
Teide.

It is very kind of you to offer to loan me fibre cables but I don?t think it would help, but thank you anyway. At this stage of my investigation I am not sure either of the cables is the problem. To confirm this, by substitution, I would ideally need 200u fibre for the calibration and a 50u for the signal, both with FC connectors. I do have a second 50u fibre but not a second 200u fibre. Also, it is possible the problem is internal to the optical injection unit or some other area. Another problem I have is that as I?m in Australia the cost of sending fibres from Europe is expensive!