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Alignment issue - quite puzzlinh


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#1 gspie

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Posted 09 January 2015 - 07:34 PM

I have a well aligned LX-850 10" that has been tracking quite well for the past 6-months. All I need to do at the start of an imaging session is do a two-star align, and all is well. I get message that the scope is off <5 seconds. Tonight , it started out that way, but I accidentally did a park after the scope was aligned -duh-oh!.
Well, I just let the park complete, then turned off the scope. Ok, here we go again, I turned it in, and did the two star align again. This time, the align stars were right-on, very little adjustment needed (hand-control, not mount adjust). And the second star was also very close. When I hit enter after the second star was centered, the handset said the scope was 23 minutes off polar ?????
Then when I tried to slew somewhere, it was completely off, and almost sent the scope into the tripos - I had to power it off to keep from having any damage. So, I shut it off, adjusted the scope to the centering marks on both axes, then tried again. This time it wanted me to do a full align, starting at Polaris - ok, I did that, and the initial position was off a bit, but the slew to Capella was right on. But even after that, pointing was still way off. I parked it again, powered it off, waited a few minutes. Then tried again. This time the first star selected was again Capella, which again was very close, then when it went to select next star, it said it was out if stars!. Ok, park, and power off/on again. I checked time, date, location, all were good, tried alignment again - again each selected star was very close, took vey little nudging if scope - Put it this way, I was using my CCD with cross-hairs to do the centering, and each and every time, the selected star was on the chip, just slightly off center. so, again, after centering the second star, this Time it said I was 40-minutes off polar / this is making absolutely no sense! I just parked it, shut it down and covered it up for the night again.
LX850 with 10" ACF OTA and Takahashi FS 60C OTA -- SBIG STT-8300M CCD with FW8G-STT Self Guiding Filter Wheel and SBIG AO-8 Adaptive Optics -- Camera Control and Image Calibration with Maxim DL/CCD Pro, Image processing with PixInsight, and final composition with Photoshop CS5

http://home.comcast....ie/astroweb.htm

#2 MistrBadgr

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Posted 10 January 2015 - 05:37 PM

Try a drive training and see what happens. Something might have changed a bit, especially if the temperature of the scope has changed any recently.....just a guess!

Customer Support might have a better answer.

Bill Steen
Bill Steen, Sky Hunters' Haven Observatory, Broken Arrow, Oklahoma

#3 gspie

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Posted 10 January 2015 - 09:11 PM

Just trained it 2-nights ago. The scope apperas 'confused'.
I checked date,time, location and time zone - they are all correct. Is there a away to re-boot the hand controller?
LX850 with 10" ACF OTA and Takahashi FS 60C OTA -- SBIG STT-8300M CCD with FW8G-STT Self Guiding Filter Wheel and SBIG AO-8 Adaptive Optics -- Camera Control and Image Calibration with Maxim DL/CCD Pro, Image processing with PixInsight, and final composition with Photoshop CS5

http://home.comcast....ie/astroweb.htm

#4 Mark Sibole

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Posted 11 January 2015 - 07:28 AM

Im not sure on this model but on the old LX200 Models you could cure ailments like that by centering a known star then syncing on it.Its worth a try.I hve no info on any of the new scopes or how they function.Ive been unable to get info on them or try one out so all i can do is guess on this.

 

Mark


Mark Sibole
MTSO Observatory
Fife Lake, Mi.

http://astronomy.qteaser.com

#5 gspie

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Posted 11 January 2015 - 08:20 AM

I'll give that a try, but last thig I did was use the hand-controller to slew from Alnitak (second alignment star - after pressing enter after centering) to Capella (first alignment star), it started a slew that was bound to drive the scope into the tripod if I hadn't hit the power switch!
LX850 with 10" ACF OTA and Takahashi FS 60C OTA -- SBIG STT-8300M CCD with FW8G-STT Self Guiding Filter Wheel and SBIG AO-8 Adaptive Optics -- Camera Control and Image Calibration with Maxim DL/CCD Pro, Image processing with PixInsight, and final composition with Photoshop CS5

http://home.comcast....ie/astroweb.htm

#6 gspie

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Posted 11 January 2015 - 12:14 PM

The re-boot I'm asking about is something I saw in a post a year or so ago. Something to do with holding down a key (or keys) for some amount of time...


LX850 with 10" ACF OTA and Takahashi FS 60C OTA -- SBIG STT-8300M CCD with FW8G-STT Self Guiding Filter Wheel and SBIG AO-8 Adaptive Optics -- Camera Control and Image Calibration with Maxim DL/CCD Pro, Image processing with PixInsight, and final composition with Photoshop CS5

http://home.comcast....ie/astroweb.htm

#7 gspie

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Posted 11 January 2015 - 03:53 PM

Or hitting a key sme number of times in a row, quickly...
LX850 with 10" ACF OTA and Takahashi FS 60C OTA -- SBIG STT-8300M CCD with FW8G-STT Self Guiding Filter Wheel and SBIG AO-8 Adaptive Optics -- Camera Control and Image Calibration with Maxim DL/CCD Pro, Image processing with PixInsight, and final composition with Photoshop CS5

http://home.comcast....ie/astroweb.htm

#8 Mark Sibole

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Posted 11 January 2015 - 06:22 PM

I think it used to be 999  if memory serves me right.It basically resets the software back to factory settings and you will loose all settings.


Mark Sibole
MTSO Observatory
Fife Lake, Mi.

http://astronomy.qteaser.com

#9 Mark Sibole

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Posted 13 January 2015 - 06:46 PM

Make any progress on your scope???


Mark Sibole
MTSO Observatory
Fife Lake, Mi.

http://astronomy.qteaser.com

#10 gspie

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Posted 14 January 2015 - 07:56 AM

I called support and they told me to do a reset (from handset menu) then etry. Since we've been having a lot of rain in the Phienix area, I haven't been able to try.
LX850 with 10" ACF OTA and Takahashi FS 60C OTA -- SBIG STT-8300M CCD with FW8G-STT Self Guiding Filter Wheel and SBIG AO-8 Adaptive Optics -- Camera Control and Image Calibration with Maxim DL/CCD Pro, Image processing with PixInsight, and final composition with Photoshop CS5

http://home.comcast....ie/astroweb.htm

#11 Loden1111

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Posted 01 February 2015 - 07:30 PM

I have had several instances when for no apparent reason the mount decides to head for China. So far the only thing I have been able to do is to do a manual shut-off, then restart and the mount should find home. At that point PEC training is lost so basically it is time to do a complete setup and align routine again.



#12 gspie

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Posted 03 February 2015 - 01:25 PM

I had to do a RESET on hand controller, which did work, but I had to re-do all of my settings/training.

 

I still have trouble with a 2-star align. I get the slew to the first star, center the star, then hit 'Enter' -- then is says it is out of stars, or some such message, and can't complete the align.

 

Since I had a pretty good drift-align before all of this started, I now do a one-star align, ignore whenever Polaris is (it isn't centered, but I know the scope is well aligned), so I just hit enter and then center the star it slews to and all is OK -- except, it really isn't OK -- there were plenty of stars visible in the sky, I have an unobstructed view of east through north to west, and a pretty good view through the south if the star is high enough above my house. It should have been able to do a 2-star align without running out of stars...


LX850 with 10" ACF OTA and Takahashi FS 60C OTA -- SBIG STT-8300M CCD with FW8G-STT Self Guiding Filter Wheel and SBIG AO-8 Adaptive Optics -- Camera Control and Image Calibration with Maxim DL/CCD Pro, Image processing with PixInsight, and final composition with Photoshop CS5

http://home.comcast....ie/astroweb.htm




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