VintageBigBlue.org

 

Re: PEC sessions, can you use a guide camera for this?


Oct 12, 2007

 


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

#34689 Oct 12, 2007

an you use a guide camera and software to make corrections during a

PEC session, instead of using the hand controller? That sure would

make it soooo easy if you could. :^) Just not sure that the PEC would

see the corrections as inputs like from a hand controller or not.



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

#34690 Oct 12, 2007

Yes.



You'll want to make sure the autoguider is not doing too much

correcting in DEC, as these can cause unnecessary corrections in RA.

Don't take exposures that are too short (less than 1 second) as these

will cause seeing fluctuations to be programmed into PEC. Take a

number of worm cycles, and average them together.



You may want to also check out PemPro, as it is likely to do a better

job than a simple autoguider or even you correcting by hand.



Regards,



-Paul

--- In Losmandy_users@yahoogroups.com, "Floyd Blue" fblue@...> wrote:

>

> an you use a guide camera and software to make corrections during a

> PEC session, instead of using the hand controller? That sure would

> make it soooo easy if you could. :^) Just not sure that the PEC would

> see the corrections as inputs like from a hand controller or not.

>



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

#34691 Oct 12, 2007

Thanks, I thought about Pempro, but the cost and all? Plus I tried it

once and did not figure it out. :^)

Plus, I believe you can tell the Gemini to ignore the DEC inputs, right?

Floyd --- In Losmandy_users@yahoogroups.com, "Paul K" pkane2001@...> wrote:

>

> Yes.

>

> You'll want to make sure the autoguider is not doing too much

> correcting in DEC, as these can cause unnecessary corrections in RA.

> Don't take exposures that are too short (less than 1 second) as these

> will cause seeing fluctuations to be programmed into PEC. Take a

> number of worm cycles, and average them together.

>

> You may want to also check out PemPro, as it is likely to do a better

> job than a simple autoguider or even you correcting by hand.

>

> Regards,

>

> -Paul

>

> --- In Losmandy_users@yahoogroups.com, "Floyd Blue" fblue@> wrote:

> >

> > an you use a guide camera and software to make corrections during a

> > PEC session, instead of using the hand controller? That sure would

> > make it soooo easy if you could. :^) Just not sure that the PEC would

> > see the corrections as inputs like from a hand controller or not.

> >

>



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

#34692 Oct 12, 2007

Don't think you can tell Gemini to ignore the DEC input, but

whatever autoguiding software you use very likely has a setting to

disable corrections in that axis.



Regards,



-Paul



--- In Losmandy_users@yahoogroups.com, "Floyd Blue" fblue@...>

wrote: >

>

> Thanks, I thought about Pempro, but the cost and all? Plus I tried

it > once and did not figure it out. :^)

> Plus, I believe you can tell the Gemini to ignore the DEC inputs,

right? > Floyd

> --- In Losmandy_users@yahoogroups.com, "Paul K" pkane2001@> wrote:

> >

> > Yes.

> >

> > You'll want to make sure the autoguider is not doing too much

> > correcting in DEC, as these can cause unnecessary corrections in

RA. > > Don't take exposures that are too short (less than 1 second) as

these > > will cause seeing fluctuations to be programmed into PEC. Take a

> > number of worm cycles, and average them together.

> >

> > You may want to also check out PemPro, as it is likely to do a

better > > job than a simple autoguider or even you correcting by hand.

> >

> > Regards,

> >

> > -Paul

> >

> > --- In Losmandy_users@yahoogroups.com, "Floyd Blue" fblue@>

wrote: > > >

> > > an you use a guide camera and software to make corrections

during a > > > PEC session, instead of using the hand controller? That sure

would > > > make it soooo easy if you could. :^) Just not sure that the

PEC would > > > see the corrections as inputs like from a hand controller or

not. > > >

> >

>



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

#34693 Oct 12, 2007

Thanks Paul, I was misreading the drift correction function of the PEC

I guess, but I thought it was saying that it would ignore the drift

and figured it meant the drift north to south.

Floyd --- In Losmandy_users@yahoogroups.com, "Paul K" pkane2001@...> wrote:

>

> Don't think you can tell Gemini to ignore the DEC input, but

> whatever autoguiding software you use very likely has a setting to

> disable corrections in that axis.

>

> Regards,

>

> -Paul

>

> --- In Losmandy_users@yahoogroups.com, "Floyd Blue" fblue@>

> wrote:

> >

> >

> > Thanks, I thought about Pempro, but the cost and all? Plus I tried

> it

> > once and did not figure it out. :^)

> > Plus, I believe you can tell the Gemini to ignore the DEC inputs,

> right?

> > Floyd

> > --- In Losmandy_users@yahoogroups.com, "Paul K" pkane2001@> wrote:

> > >

> > > Yes.

> > >

> > > You'll want to make sure the autoguider is not doing too much

> > > correcting in DEC, as these can cause unnecessary corrections in

> RA.

> > > Don't take exposures that are too short (less than 1 second) as

> these

> > > will cause seeing fluctuations to be programmed into PEC. Take a

> > > number of worm cycles, and average them together.

> > >

> > > You may want to also check out PemPro, as it is likely to do a

> better

> > > job than a simple autoguider or even you correcting by hand.

> > >

> > > Regards,

> > >

> > > -Paul

> > >

> > > --- In Losmandy_users@yahoogroups.com, "Floyd Blue" fblue@>

> wrote:

> > > >

> > > > an you use a guide camera and software to make corrections

> during a

> > > > PEC session, instead of using the hand controller? That sure

> would

> > > > make it soooo easy if you could. :^) Just not sure that the

> PEC would

> > > > see the corrections as inputs like from a hand controller or

> not.

> > > >

> > >

> >

>







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

#34695 Oct 13, 2007

I cn tell you that PemPro is the bomb! In addition to the excellent

PEC tool, it has a drift alignment tool that makes drift aligning so

easy and fast.



I believe that one of the benefits of PemPro is that the corrections

will be precisely matched to the worm errors. When you are doing the

adjustments manually or with a guider making inputs, the corrections

can be off by varying amounts, as they are reacting to errors after

the fact. PemPro analyses the errors, develops a fitted curve, then

uploads it to the mount. The corrections match mutch more precisely

to the worm errors.



Regards,



Gary

--- In Losmandy_users@yahoogroups.com, "Floyd Blue" fblue@...> wrote:

>

> an you use a guide camera and software to make corrections during a

> PEC session, instead of using the hand controller? That sure would

> make it soooo easy if you could. :^) Just not sure that the PEC

would

> see the corrections as inputs like from a hand controller or not.

>



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

#34696 Oct 13, 2007

Thank you Gary for the information.

Floyd

--- In Losmandy_users@yahoogroups.com, "gary_teamgs" gary_teamgs@...>

wrote: >

> I cn tell you that PemPro is the bomb! In addition to the excellent

> PEC tool, it has a drift alignment tool that makes drift aligning so

> easy and fast.

>

> I believe that one of the benefits of PemPro is that the corrections

> will be precisely matched to the worm errors. When you are doing the

> adjustments manually or with a guider making inputs, the corrections

> can be off by varying amounts, as they are reacting to errors after

> the fact. PemPro analyses the errors, develops a fitted curve, then

> uploads it to the mount. The corrections match mutch more precisely

> to the worm errors.

>

> Regards,

>

> Gary

>

> --- In Losmandy_users@yahoogroups.com, "Floyd Blue" fblue@> wrote:

> >

> > an you use a guide camera and software to make corrections during a

> > PEC session, instead of using the hand controller? That sure would

> > make it soooo easy if you could. :^) Just not sure that the PEC

> would

> > see the corrections as inputs like from a hand controller or not.

> >

>



Contact Us
This Site's Privacy Policy
Google's privacy policies

S
e
n
i
o
r
T
u
b
e
.
o
r
g