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RE: [Losmandy_users] Re: Pointing Way Off


Jul 23, 2004

 


----------------------------

#21705 Jul 23, 2004

I am a new G11/Gemini v3 user. The first time I used with my 10"

SCT, I used Maxpoint to model and ended up with reasonably good

pointing. I used it for imaging (20 minute guided (AO7) images that

looked very good.



I decided I wanted to learn the mount functionality and hone the

tracking performance to see how long I can image unguided.





The last couple nights, besides fighting the fog, I have had trouble

getting the mount to point even to the right general direction in

the sky.



Problems:



1) I am a LX200 fork mount guy who is still somewhat confused with

the GEM.



2) When I cold boot the Gemini, while pointing at the pole, the RA

is off by like 5 hours. I have checked the UTC - it is within

seconds. My Longitude and Latitude are right on. --- Am I missing

a setting. I have even used the Gemini Control Panel to set the

Site information with no better performance. (I know I have seen

some stuff about setting the time zone, but I have not seen this

setting on the paddle.)



3) Even if I do get the mount to think it is pointing at the right

RA and DEC for the pole (Say 17 Hr.. and 90 degrees) and tell it to

goto Vega it points to the west sky instead of the NE (close to

Zenith) where Vega is. Then - Even if I manually align the scope

to Vega with the right RA and DEC and then try to move to another

star - it aint even close.





Help??



----------------------------

#21706 Jul 24, 2004

Doug;



You said, "...while pointing at the pole, the RA is off by like 5

hours..." I'd bet you have either your Time or Location setting incorrect.

Review your documentation paying special attention to the format you need to

use to enter and re-enter them...joe :)





"May You Go Among The Imperishable Stars"



Joe Mize: jmize@...

StarFields Observatory www.cav-sfo.com

Chiefland, FL 29:24'33.4"N 82:51'37.7"W

Moon Phase: tycho.usno.navy.mil/cgi-bin/phase.gif

----- Original Message -----

From: "dougla60" pdouglas60@...>

To: Losmandy_users@yahoogroups.com>

Sent: Saturday, July 24, 2004 2:21 AM

Subject: [Losmandy_users] Pointing Way Off





>

> I am a new G11/Gemini v3 user. The first time I used with my 10"

> SCT, I used Maxpoint to model and ended up with reasonably good

> pointing. I used it for imaging (20 minute guided (AO7) images that

> looked very good.

>

> I decided I wanted to learn the mount functionality and hone the

> tracking performance to see how long I can image unguided.

>

>

> The last couple nights, besides fighting the fog, I have had trouble

> getting the mount to point even to the right general direction in

> the sky.

>

> Problems:

>

> 1) I am a LX200 fork mount guy who is still somewhat confused with

> the GEM.

>

> 2) When I cold boot the Gemini, while pointing at the pole, the RA

> is off by like 5 hours. I have checked the UTC - it is within

> seconds. My Longitude and Latitude are right on. --- Am I missing

> a setting. I have even used the Gemini Control Panel to set the

> Site information with no better performance. (I know I have seen

> some stuff about setting the time zone, but I have not seen this

> setting on the paddle.)

>

> 3) Even if I do get the mount to think it is pointing at the right

> RA and DEC for the pole (Say 17 Hr.. and 90 degrees) and tell it to

> goto Vega it points to the west sky instead of the NE (close to

> Zenith) where Vega is. Then - Even if I manually align the scope

> to Vega with the right RA and DEC and then try to move to another

> star - it aint even close.

>

>

> Help??

>

>

>

>

>

>

>

>

>

> Yahoo! Groups Links

>

>

>

>

>

>



----------------------------

#21707 Jul 24, 2004

Doug, when entering the Longitude and Latitude, did you also set the TIME

ZONE? This will be a very simple fix.

Regards - Bob

> -----Original Message-----

> From: dougla60 [mailto:pdouglas60@...]

> Sent: Saturday, July 24, 2004 2:21 AM

> To: Losmandy_users@yahoogroups.com

> Subject: [Losmandy_users] Pointing Way Off

>

>

>

> I am a new G11/Gemini v3 user. The first time I used with my 10"

> SCT, I used Maxpoint to model and ended up with reasonably good

> pointing. I used it for imaging (20 minute guided (AO7) images that

> looked very good.

>

> I decided I wanted to learn the mount functionality and hone the

> tracking performance to see how long I can image unguided.

>

>

> The last couple nights, besides fighting the fog, I have had trouble

> getting the mount to point even to the right general direction in

> the sky.

>

> Problems:

>

> 1) I am a LX200 fork mount guy who is still somewhat confused with

> the GEM.

>

> 2) When I cold boot the Gemini, while pointing at the pole, the RA

> is off by like 5 hours. I have checked the UTC - it is within

> seconds. My Longitude and Latitude are right on. --- Am I missing

> a setting. I have even used the Gemini Control Panel to set the

> Site information with no better performance. (I know I have seen

> some stuff about setting the time zone, but I have not seen this

> setting on the paddle.)

>

> 3) Even if I do get the mount to think it is pointing at the right

> RA and DEC for the pole (Say 17 Hr.. and 90 degrees) and tell it to

> goto Vega it points to the west sky instead of the NE (close to

> Zenith) where Vega is. Then - Even if I manually align the scope

> to Vega with the right RA and DEC and then try to move to another

> star - it aint even close.

>

>

> Help??

>

>

>

>

>

>

>

>

>

> Yahoo! Groups Links

>

>

>

>

>

>







----------------------------

#21709 Jul 24, 2004

Thanks for some pointers...



Time is correct and in the right format.

Lat and Long are correct.



I can not find a timezone setting on the paddle - however when I

view local sidereal time it is right on the money - along with civil

time. (This has been throughout this confusing exercise)



I believe I did fix the problem by doing a hard power down (remove

battery). I then reset the configurables to my time/location and

rebooted using a cold start. This seem to work - I will see

tonight.



I am guessing I messed up some config in the Gemini Control Center

software and could not determine what it was using the paddle or the

software. I will need to clear the GCC settings before I connect

again.



Another dumb question - How do I tell the mount which side of the

Meridian to goto (for objects near the meridian) for maximizing

tracking time during photos? Do I have to locate manually?



Will the mount automatically do a meridian flip when tracking? Can

I tell it to do this when I want?



Sorry for the beginner questions, but I can not find half the

answers in the documentation.



Paul













--- In Losmandy_users@yahoogroups.com, "bob allevo"

bob.allevo@c...> wrote: > Doug, when entering the Longitude and Latitude, did you also set

the TIME > ZONE? This will be a very simple fix.

> Regards - Bob

>

> > -----Original Message-----

> > From: dougla60 [mailto:pdouglas60@a...]

> > Sent: Saturday, July 24, 2004 2:21 AM

> > To: Losmandy_users@yahoogroups.com

> > Subject: [Losmandy_users] Pointing Way Off

> >

> >

> >

> > I am a new G11/Gemini v3 user. The first time I used with my 10"

> > SCT, I used Maxpoint to model and ended up with reasonably good

> > pointing. I used it for imaging (20 minute guided (AO7) images

that > > looked very good.

> >

> > I decided I wanted to learn the mount functionality and hone the

> > tracking performance to see how long I can image unguided.

> >

> >

> > The last couple nights, besides fighting the fog, I have had

trouble > > getting the mount to point even to the right general direction in

> > the sky.

> >

> > Problems:

> >

> > 1) I am a LX200 fork mount guy who is still somewhat confused

with > > the GEM.

> >

> > 2) When I cold boot the Gemini, while pointing at the pole, the

RA > > is off by like 5 hours. I have checked the UTC - it is within

> > seconds. My Longitude and Latitude are right on. --- Am I

missing > > a setting. I have even used the Gemini Control Panel to set the

> > Site information with no better performance. (I know I have seen

> > some stuff about setting the time zone, but I have not seen this

> > setting on the paddle.)

> >

> > 3) Even if I do get the mount to think it is pointing at the

right > > RA and DEC for the pole (Say 17 Hr.. and 90 degrees) and tell

it to > > goto Vega it points to the west sky instead of the NE (close to

> > Zenith) where Vega is. Then - Even if I manually align the

scope > > to Vega with the right RA and DEC and then try to move to another

> > star - it aint even close.

> >

> >

> > Help??

> >

> >

> >

> >

> >

> >

> >

> >

> >

> > Yahoo! Groups Links

> >

> >

> >

> >

> >

> >



----------------------------

#21710 Jul 24, 2004

I will need to clear the GCC settings before I connect again.





Although I doubt that this will help solve the problem, you can "reset"

the GCC by deleting the file "GCC_Config.ini" in the GCC's "Databases"

folder/subdirectory.





Daniel G.rlich



www.DocGoerlich.com/GCC/



----------------------------

#21711 Jul 24, 2004

Paul,

> I can not find a timezone setting on the paddle - however when I

> view local sidereal time it is right on the money - along with

civil > time. (This has been throughout this confusing exercise)



The time-zone is the Geographical coordinates settings menu,

following the lattitude and longitude options.

> How do I tell the mount which side of the

> Meridian to goto (for objects near the meridian) for maximizing

> tracking time during photos? Do I have to locate manually?

> Will the mount automatically do a meridian flip when tracking? Can

> I tell it to do this when I want?



Gemini will perform a meridian flip when a Goto command will take it

close to or past the safety limit on the East or West sides.



Unfortunately, there's no way to force a meridian flip, other then

picking a target that will require one and doing a Goto to it.



Gemini will not do a meridian flip when tracking, only when

performing a Goto past the safety limit. When tracking or manually

slewing past the limit, it'll beep and eventually stop tracking, but

will not flip.



Hope this helps,



-Paul



--- In Losmandy_users@yahoogroups.com, "dougla60" pdouglas60@a...>

wrote:







----------------------------

#21713 Jul 24, 2004

Paul, I'm not sure about the meridian flip. But as I understand it, if

you're pointing on the east side, it will continue until it reaches the

"LIMIT" then the alarm will go off. I just don't know if it will flip by

itself. But back to the TIMEZONE not time. Look for it in Geogr. Location,

then Longitude, then Latitude, then TIMEZONE. Ref: Gemini Level 3. Set it

correctly to yours incl DST if applicable. Please check again, it's your

fix.

Good luck - Bob

> -----Original Message-----

> From: dougla60 [mailto:pdouglas60@...]

> Sent: Saturday, July 24, 2004 3:53 PM

> To: Losmandy_users@yahoogroups.com

> Subject: [Losmandy_users] Re: Pointing Way Off

>

>

> Thanks for some pointers...

>

> Time is correct and in the right format.

> Lat and Long are correct.

>

> I can not find a timezone setting on the paddle - however when I

> view local sidereal time it is right on the money - along with civil

> time. (This has been throughout this confusing exercise)

>

> I believe I did fix the problem by doing a hard power down (remove

> battery). I then reset the configurables to my time/location and

> rebooted using a cold start. This seem to work - I will see

> tonight.

>

> I am guessing I messed up some config in the Gemini Control Center

> software and could not determine what it was using the paddle or the

> software. I will need to clear the GCC settings before I connect

> again.

>

> Another dumb question - How do I tell the mount which side of the

> Meridian to goto (for objects near the meridian) for maximizing

> tracking time during photos? Do I have to locate manually?

>

> Will the mount automatically do a meridian flip when tracking? Can

> I tell it to do this when I want?

>

> Sorry for the beginner questions, but I can not find half the

> answers in the documentation.

>

> Paul

>

>

>

>

>

>

> --- In Losmandy_users@yahoogroups.com, "bob allevo"

> bob.allevo@c...> wrote:

> > Doug, when entering the Longitude and Latitude, did you also set

> the TIME

> > ZONE? This will be a very simple fix.

> > Regards - Bob

> >

> > > -----Original Message-----

> > > From: dougla60 [mailto:pdouglas60@a...]

> > > Sent: Saturday, July 24, 2004 2:21 AM

> > > To: Losmandy_users@yahoogroups.com

> > > Subject: [Losmandy_users] Pointing Way Off

> > >

> > >

> > >

> > > I am a new G11/Gemini v3 user. The first time I used with my 10"

> > > SCT, I used Maxpoint to model and ended up with reasonably good

> > > pointing. I used it for imaging (20 minute guided (AO7) images

> that

> > > looked very good.

> > >

> > > I decided I wanted to learn the mount functionality and hone the

> > > tracking performance to see how long I can image unguided.

> > >

> > >

> > > The last couple nights, besides fighting the fog, I have had

> trouble

> > > getting the mount to point even to the right general direction in

> > > the sky.

> > >

> > > Problems:

> > >

> > > 1) I am a LX200 fork mount guy who is still somewhat confused

> with

> > > the GEM.

> > >

> > > 2) When I cold boot the Gemini, while pointing at the pole, the

> RA

> > > is off by like 5 hours. I have checked the UTC - it is within

> > > seconds. My Longitude and Latitude are right on. --- Am I

> missing

> > > a setting. I have even used the Gemini Control Panel to set the

> > > Site information with no better performance. (I know I have seen

> > > some stuff about setting the time zone, but I have not seen this

> > > setting on the paddle.)

> > >

> > > 3) Even if I do get the mount to think it is pointing at the

> right

> > > RA and DEC for the pole (Say 17 Hr.. and 90 degrees) and tell

> it to

> > > goto Vega it points to the west sky instead of the NE (close to

> > > Zenith) where Vega is. Then - Even if I manually align the

> scope

> > > to Vega with the right RA and DEC and then try to move to another

> > > star - it aint even close.

> > >

> > >

> > > Help??

> > >

> > >

> > >

> > >

> > >

> > >

> > >

> > >

> > >

> > > Yahoo! Groups Links

> > >

> > >

> > >

> > >

> > >

> > >

>

>

>

>

>

> Yahoo! Groups Links

>

>

>

>

>

>



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