Justin, although I did not want to overload the e-mail and the web page (most visitors don't care about detailed info such as observation site coordinates), I can provide anything, there is no secret. You just have to ask what you need :-) For the first video with Endeavour docked to ISS (area of Pau, France), here are the data: - observation site: lat 43°21'27"N, long 0°26'03"W, alt 183m - ISS pass culmination at 3:54:35 UTC, altitude 77.4°, distance 354.0 km - telescope: 10" Meade ACF, focal length 5500mm (2.2x Barlow lens in front of the camera), yellow filter Wratten 12 - camera Skynyx L2-2 monochrome, resolution 1616x1212, recording 12-bit fits files, exposure 2ms, gain and gamma unchanged (1) - processed video contains 800 frames, beginning at 3:53:24 UTC and ending at 3:54:50 UTC - processing: each frame of the final video is a combination of 15 consecutive raw frames (no culling: all raw frames used), followed by wavelet processing in Prism (wavelet type=cube, coefficients: plane 1=4, other planes=1) I don't have a ftp account, but if you have one please give me the corresponding info so that I'll be able to upload the 3.2 gigabyte of raw files (800 frames, 4 Mbyte each). I'm going to a business trip all the week (I'm just an amateur astronomer, with a job for living :-)), but next week-end I'll be compiling all the data for the other videos and solar transits. regards At 17:48 05/06/2011, j.allport@utoronto.ca wrote: > > ------------------------------------ > > From: Thierry Legault <legault@club-internet.fr> > > Date: Sun, Jun 5, 2011 at 4:40 AM > > Subject: STS-134: videos of Endeavour and ISS, plus solar transits > > To: SeeSat-L@satobs.org > > > > > > hello, > > > > as usual I have travelled in western Europe to catch Endeavour during > > STS-134, fighting with bad weather and average seeing. Here is the > > compilation of the results: > > > > http://legault.perso.sfr.fr/STS-134.html > > > > You'll find a 3D video of a pass of Endeavour docked to the ISS > > (stereo pair and anaglyph), another video with two passes of > > Endeavour before return to Earth (unfortunately the seeing was bad) > > and several solar transits. > > > > The videos have been taken with a 10" ACF Meade telescope on a > > Takahashi EM-400 German mount heavily (hardware and software) > > modified for real-time fast tracking with a guide camera on a finder. > > The main camera is a Lumenera Skynyx L2-2 recording monochrome 12-bit > > Fits files at 10 fps (one frame is 4 Mb and there are more than 1000 > > frames for a pass). As usual in planetary imaging, each frame of the > > final video is a combination of 15 to 30 consecutive registered raw > > frames (in order to smooth turbulence and to improve signal-to-noise > > ratio), followed by slight sharpening. > > > > During this vacancy period I have also taken other satellites, it > > will take some time for processing and preparation of pages but soon > > you'll see videos of passes of USA-186 (Keyhole), X-37B (OTV-2) and > > Nanosail. Stay tuned... :-) > > > > regards > > > > > > > > Thierry Legault > > www.astrophoto.fr > > > >First, let me say that I find the data liked above absolutely >outstanding. We are all better off for being able to share in Thierry >and Emmanuel's results. > >Unfortunately, I can't be certain, but I think this report does not >conform to the SeeSat list rules concerning high-resolution imaging. > >1. It's not clear to me the intent of rule 1. Is the observer required >to provide all available existing desginations from the 3 listed, or >only one of the listed? I believe only the common name is provided. >It's possible this is sufficient. > >3. I was not able to find the observing location in the email above, >or on the linked site. I propose that "Pau, France", or "Spain" is not >of sufficient precision for me to evaluate the supplied data. > >4. Date and time have been provided to the nearest minute. A factor of >60 too coarse to enable reasonable analysis of the data per SeeSat >rules. Other observations on the same page have been provided to the >nearest day. A factor of > 80000 too coarse. Further, even if the time >to the nearest second were provided for the video, there are many >still-frames shown from the video. It is not clear to me at what point >in the video these were taken, compounded by the fact that the video >itself has been accelerated. By my estimation, none of the presented >data is in accord with this rule. > >9. The data provided are deficient in several aspects: Total duration >is provided for the solar transit images, but not for the pass videos. >Exposure per frame is not provided for the video (though thankfully it >is provided for the DSLR-taken transit images. Resolution and bit >depth for the raw data are not provided. > >10. Processing is described in a cursory manner on the linked >equipment page (stacking in groups of 10, wavelet sharpened, and low >level adjustment). It's not clear exactly what settings are used for >such processing, nor is it clear whether there has been any culling >from the raw data prior to stacking. > >11. Raw data is not provided, nor is it offered as available on request. > >As such it is clear this post does not adequately address the list >rules. I leave it as an exercise for the reader to decide if it's the >posted data or the rules themselves that are inappropriate for the list. > >Regards, >Justin > >_______________________________________________ >Seesat-l mailing list >http://mailman.satobs.org/mailman/listinfo/seesat-l Thierry Legault www.astrophoto.fr _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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