Affiliation
Variable Stars South (VSS)
Wed, 12/17/2014 - 01:31
Hi All,
I've been analysing time series images using the new photometry analysis tool in MaxIm DL 6.07. All works well when only a couple of hundred images are measured at a time. However the export CSV function doesn't want to save more than 306 lines of data even though the graph tab on the Photometry tool shows data point for all images in the series. For example I recorded 540 images last night of the HX Vel field, 9 stars measured in each of the images using MaxIm this morning, the Graph tab showed nice light curves with data points from all images but only 306 rows were exported instead of all 540.
Anyone else see this behavior? Is there a way to export the full set of measurements? Cheers,
Mark
Dear Mark,
I also noticed similar issue when I used MaxImDL 6.05.
I think that Diffraction Limited - SBIG / Cyanogen Forum is better place to ask this problem.
http://www.diffractionlimited.com/forum/index.php
Seiichiro Kiyota
Hi Mark
I was on the Maxim 6 Beta Team and have been wrestling with this problem for months...lots of months. In October, Adam from Maxim spent some time on my system through Team Viewer and discovered a bug in memeory management when using the Photometry tool and said the fix should be available on the next minor release. I don't think we have had that release yet but am not sure.
It is well to remind the MaxIm team of the problem. It is also helpful to let them know that more than one person is intersted in the problem. Which I see you did on Nov 2 without a reply. I also see that they have the issue marked "SOLVED". I'll do some testing.
I have also been trying to get MaxIm to provide for including comments in the AAVSO Format report is anyone else is interested in that issue.
Jim Jones
thanks
Hi Seiichiro and Jim,
thanks for the feedback. I've also posted a question on the MaxIm forum so we'll see if there is any useful response.
Its tedious to break the analysis into "small" chucks of a few hundred images. With my DSLR time series 600 images per night is common, each of which is split into four color channels so 2400 images need to be measured. I'm sure others have even larger data sets. It would be much better if the MaxIm photometry tool could be set up once and left to process all in one go then save the CSV (or AAVSO) files.
Comment lines in the AAVSO file would be useful, hopefully that will be implimented soon too. Cheers,
Mark
I just ran a 700+ image series and it is still broken in 6.07.
I'm glad you posted to the MaxIm forum. Sometimes I think the MaxIm staff thinks I am the only person in the whole world who insists in processing long time series.
I also posted a query and started a new thread so my post wouldn't be behind that "SOLVED" tag.
I'm pretty sure they will tell us it will be fixed in the next minor release.
Jim Jones
Received from MaxIm:
"I think V6.07 was released on the 22nd of October, so that fix would be available in MaxIm DL V6.08 — I'm not exactly sure when that would be coming out, but I can't imagine it would be very long."
But it was good to remind them so it doesn't fall in a crack.
Jim Jones
MaxIm has released V6.08. According to the release notes, the memory management fix was included.
I downloaded it tonight but won't try it until tomorrow.
Jim Jones
Hi All,
The photometry tool in MaxIm V6.08 can handle many more images, at least 2640 anyway. This tool works very well for what I'm doing, measuring a series of images is quite fast. It would be nice to be able to change the output file type from CSV to tab spaced text files, but I can live with the CSV files. Cheers,
Mark.
Mark,
Take the csv files, change the file type to .txt and in a text editing program change the "," character to a tab. Done!
Lew
Hi Lew,
thanks for the tip but the conversion process wasn't really my issue with CSV files - basically I'm lazy and prefer minimising the number of step when analysing my images. CSV files require a few extra steps compared with tab delimited files when importing into my Excel spreadsheets. It's not a big issue really, Cheers,
Mark
Mark,
I am curious as to what extra steps.Mira has an option of csv and txt output which I import into Excel. I have been using CSV because I thought it had fewer steps than tab txt. I may be missing something. I am lazy and you may have a faster way.
Brad Walter, WBY
Hi Brad,
The default delimiter is "Tab" in Excel's Text Import Wizard so I only next to select "Delimited" in step one of the wizard then click "Finish" (see image below):
For CSV files, after selecting "Delimited" I need to click "Next>" to get to step 2 where "Comma" has to be checked, followed by "Finish":
So it's really only one extra step, and a small one at that (did I mention I was lazy). The problem is that I'm acustomed to importing tab delimited text files generated by AIP4Win. Now that I'm using MaxIm DL V6.08 I just need to get used to the CSV file process. Cheers,
Mark
Hello Mark
Forgive me for hyjacking your post here. I am not aware that there is an option to set the aperture in Maxim 6 as I have done in the past on Maxim 3-4-5. Do you know where it is?
I am traveling and am away from my book of passwords, so have not posted in the Cyanogen site.
Gary
WGR
Hi Gary
I'm not Mark but when you are in the "Identify" tab of the Photometry Tool, just right click anywhere on the image.
If you are not using the Photometry Tool, just right click anywhere on the image.
Jim Jones
Hello Jim
Thanks for that. I now remember doing that.
Gary
WGR