Search found 32 matches

by rspostrspost
Fri May 17, 2019 12:37 pm
Forum: Science
Topic: Image orientation on opening
Replies: 2
Views: 2283

Re: Image orientation on opening

Yes, but I am automation with ACP/Maxim. I have been doing photometric processing Mira, but have been also using features of Prism too. We use N up as I work with others and use large, 14,000, image reference library all with N up. I am so used to this orientation, I would not want to change. I can ...
by rspostrspost
Fri May 17, 2019 12:31 pm
Forum: Processing
Topic: Fits orientation
Replies: 5
Views: 3091

Re: Fits orientation

I use Mira for photometry. It has a click box to up flip the image. This step does not plate solution as the image only has to be flipped. The images is an array of pixels and a program can read them in any order. Don't think of this request as orientating an image as changing how the pixel array is...
by rspostrspost
Fri May 17, 2019 12:17 pm
Forum: Processing
Topic: Fix Star Blooming
Replies: 7
Views: 3418

Re: Fix Star Blooming

I tried this feature. On the first pass, it get the same type of result as show in the help file. If I save the file and reopen it, and try to remove the remain piece of the bloom, the process hangs. the image cannot be closed. Attempts to close only mimizes the image. Shutting Prism and reopening b...
by rspostrspost
Wed May 15, 2019 7:56 pm
Forum: Processing
Topic: Fits orientation
Replies: 5
Views: 3091

Fits orientation

Is there a way to set Prism to open images N up and E left. I don't want to open and flip, but have the default changed. I did not see this in settings.

thanks, Dick
by rspostrspost
Mon Sep 03, 2018 5:39 pm
Forum: post-update issues
Topic: Cannot update
Replies: 2
Views: 2234

Re: Cannot update

Thanks, Hamza, this link installed and updated correctly. I use it with my other update computer problems.

Regards, Dick
by rspostrspost
Mon Sep 03, 2018 9:39 am
Forum: post-update issues
Topic: Cannot update
Replies: 2
Views: 2234

Cannot update

Hi Hamza I installed Prism 10.2.28.215 which came with my purchase on a new computer at my ME observatory. I am trying to update and get the error listed in the attachment. The internet is working and can update other programs I run, but not this. I have tried turning of the firewall on the computer...
by rspostrspost
Wed Aug 29, 2018 9:50 am
Forum: post-update issues
Topic: update failures
Replies: 7
Views: 3455

Re: update failures

Hamza, I tried a few more times. The laptop error is "FTP error: connection refused" when about to download Prism64.exe. The laptop is wire connected. The desktop error is Fatal error: Size (2231808/0) of file (C:\user\dpost\Documents\Prism\updates_files\update.exe) is invalid. update process has be...
by rspostrspost
Wed Aug 29, 2018 9:41 am
Forum: post-update issues
Topic: update failures
Replies: 7
Views: 3455

update failures

Hamza, When trying to update to the latest version 10.3.49, I get a error during download on both my laptop and my desk computer. both errors reports vanish before I get all the details, but both are ftp errors on large files with a message that the files sizes do not match. I have a very good high ...
by rspostrspost
Thu Jul 26, 2018 6:46 pm
Forum: Tutorials
Topic: Suggest New Tutorial Topics
Replies: 21
Views: 39041

Re: Suggest New Tutorial Topics

Hi Hamza, I think getting complete documentation is taking too long. Why don't you link us to the French website? Google translate is really doing a good job. Since French and English speakers use a spectroscopy Yahoo group, I translate the French and it is working well. YOu are about to come out wi...
by rspostrspost
Sat Jun 30, 2018 8:44 pm
Forum: Science
Topic: Image orientation on opening
Replies: 2
Views: 2283

Image orientation on opening

Hi Hamza, I save all my images N up and E left. In Prism an image opens N down. Is there a setting to allow the image to be opened N up? I know the professionals are normal displaying their images N down, but I have been working N up and have Terabytes of image I work with N up so not easy to change...
by rspostrspost
Wed Jun 27, 2018 4:32 pm
Forum: Tutorials
Topic: Suggest New Tutorial Topics
Replies: 21
Views: 39041

Re: Suggest New Tutorial Topics

Hi Hamza, I think you could accelerate the use of Prism for spectroscopy in the US by asking Olivier Thizy, olivier.thizy@yahoo.fr, to write a tutorial. You may know that he is using Prism for spectroscopy and has written software to automate data acquisition using Prism. Perhaps you could pay him t...
by rspostrspost
Sun Jun 17, 2018 10:32 am
Forum: Science
Topic: GAIA DR2 astrometry
Replies: 1
Views: 2014

GAIA DR2 astrometry

From working in Pro-Am collaborations, I was told that the Astrometry in UCAC4 and other older catalogs has built in bias which causes error up to 0.5' and the professionals now wish to have astrometry with DR2 as a reference. Currently, the only way I have of doing this is with Astrometrica. Howeve...
by rspostrspost
Sat Mar 24, 2018 7:31 pm
Forum: Tutorials
Topic: Suggest New Tutorial Topics
Replies: 21
Views: 39041

Re: Suggest New Tutorial Topics

Hi, I would like to see spectroscopy also. One of the advantages of Prism is the ability to run 3 camera. With an Astrometric Instruments Hydra one can run a port for spectroscopy and one for imaging. 2 channels can be used in spectroscopy for guiding and spectra and the 3rd for imaging. One topic w...
by rspostrspost
Fri Feb 02, 2018 11:09 pm
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

Cyril, I thought I posted to say thanks for updating the photometry processing but did not see it so I wanted to be sure to say I appreciate the response. It works great and is a joy to use. Is there an article describing how the photometry is done? All I can set now is the aperture, but don't know ...
by rspostrspost
Sat Dec 09, 2017 11:44 am
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

Cyril, The screenshot was already posted on Sat Oct 21, 2017 2:40 pm. I look forward to the photometry fix as well as a description of how the photometry is done. I would be good to have the capability of not only setting the aperture but also the gap and annulus so has to avoid picking up a star in...
by rspostrspost
Fri Dec 08, 2017 10:39 pm
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

Cyril,

It there a description of how Prism "measure star" photometry is done? Is this ensemble photometry? How many stars are used?
After setting the aperture, how does Prism set the gap and annulus?
by rspostrspost
Fri Dec 08, 2017 9:41 pm
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

Cyril, I just bought a second copy of Advance, so a big investment in the belief that there will be continuous improvement and bugs will be fixed, but I am losing faith. With all the corrections going regularly, you have yet to correct the bugs I've pointed out above and they are not a major fix. 1....
by rspostrspost
Tue Oct 24, 2017 7:12 pm
Forum: Announcements
Topic: Prism and Microsoft Defender
Replies: 6
Views: 4146

Re: Prism and Microsoft Defender

Defender already had wiped out Prism.exe from it folder. Replacing it from my laptop did not allow recovery. I have added Prism and its folder to Defender's Exclusions.
Dick
by rspostrspost
Tue Oct 24, 2017 11:13 am
Forum: Announcements
Topic: Prism and Microsoft Defender
Replies: 6
Views: 4146

Re: Prism and Microsoft Defender

I just got a Defender trojan warning for the first time as having it installed for a year. See the attachment.
Dick
by rspostrspost
Mon Oct 23, 2017 1:12 pm
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

Cyril,

Yes, that is correct. Can you ignore those with 20.000 (0.99)? Not ignoring them will make a small error, but it would be better if you could avoid including them.
Thanks, Dick
by rspostrspost
Sat Oct 21, 2017 9:00 pm
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

Cyril, Regarding using the APASS data for photometry, if the current photometry could select APASS V instead instead of Fit model mag, this would make V filter images calibrate accurately. This might be easy and would make you photometry accurate at least for V filters. One thing to note. All APASS ...
by rspostrspost
Sat Oct 21, 2017 5:05 pm
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

Hamza, As it turns out, I had set the path to my copies of these catalogs when I set up Prism for the first time a year ago and forgot the setup process. I missed when I was searching today. That also explain why the name used to identify the reference stars is that of the UCAC4 catalog, but unfortu...
by rspostrspost
Sat Oct 21, 2017 12:03 pm
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

Another question. When in photometry if one selects Photometry/Automatic Calibration and from the GUI selects from the dropdown list, UCAC2/3/4. 1. Which catalog is it UCAC2, 3, or 4? It should only be UCAC4 as the other catalogs are obsolete. 2. Where are the catalogs located located on the compute...
by rspostrspost
Sat Oct 21, 2017 11:40 am
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

1. Bug in Copy from Photometry window. I attached the Prism window from Analysis/Photometry/Measure star. I select Copy which puts data in the clipboard. I then past into my editor which shows the following: X=518.143p ±0.021 Y=512.756p ±0.020 FWHML= 4.66p FWHMH= 4.48p Angle= 62.2° Flux= 31873.6 ADU...
by rspostrspost
Wed Oct 11, 2017 9:21 pm
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

Hi Cyril,

Could you find time to answer my questions which I numbered to make clear?

Thanks, Dick
by rspostrspost
Wed Sep 13, 2017 8:43 pm
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

Hamza, thanks. I'll set this up.
Dick
by rspostrspost
Wed Sep 13, 2017 7:26 pm
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

Hi Cyril, thanks for following up on my questions. this list should make your response easier. 1. In using photometry, once the data is in the popup on the screen, one can select copy (see image in prior posting). If I paste the saved data in an editor, I note that copy only contains the data up to ...
by rspostrspost
Tue Sep 12, 2017 11:35 am
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

The UCAC4 multicolor photometry is APASS photometry. I work with professionals which use APASS photometry. New data release will be coming out so it will continue to get increasing use. I have never heard that it is not the best choice. It is managed by Arne Henden who is a leading photometrist. If ...
by rspostrspost
Mon Sep 04, 2017 8:31 pm
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Re: Photometry

I took photometry on an image. I then use your tool- analysis/photometry/measure star. The screenshot is attached. The object is at the corner of the GUI where Copy is located. I then click copy and paste the clipboard in a text editor. This creates a txt file with incomplete data, leaving out the w...
by rspostrspost
Tue Aug 22, 2017 6:23 pm
Forum: Processing
Topic: Multicolor photometry
Replies: 2
Views: 2298

Re: Multicolor photometry

For example, I take photometric measurements of supernovas in B, V, g', r' and i'. These are the APASS filters so I can use APASS standard stars to do photometry on the image set, typically 100 images in each color. I want to get the SN magnitude in each color for the image set and then plot the lig...
by rspostrspost
Sat Aug 19, 2017 8:13 pm
Forum: Processing
Topic: Multicolor photometry
Replies: 2
Views: 2298

Multicolor photometry

It is not clear from the user guide how to do multicolor photometry. I would like to be able to do photometry in addition to V which is done very well, B, Sloan filters g', r', i'.

Can you give me some advice.
Thanks, Dick
by rspostrspost
Sat Aug 19, 2017 10:29 am
Forum: Processing
Topic: Photometry
Replies: 24
Views: 9905

Photometry

In using photometry, once the data is in the popup on the screen, one can select copy. If I paste the saved data in an editor, I note that copy only contains the data up to S/N. The actual magnitude is not copied. This must be a bug. The photometry tool is very good and fast. I plan to use it more. ...