Date   

Re: Desperately trying (this is the correct one) ... (Happy) end of the Story !

Dean S
 

If you are accepting comments on USB-serial adapters, I have found that the one that came with my RoboFocus from Home Domes to work the best of several that I tried, so I order 3 more. Not sure of the brand at the moment but I am sure he would tell you. Using all the same brand sure helps.

Dean

----- Original Message -----
From: "Marj" <marj@...>
To: <ap-gto@...>
Sent: Wednesday, December 12, 2007 5:20 PM
Subject: RE: [ap-gto] Re: Desperately trying (this is the correct one) ... (Happy) end of the Story !


We are planning to provide these, but have not finalized the details yet.


Marj Christen
Astro-Physics, Inc
11250 Forest Hills Road
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
www.astro-physics.com
Please include this e-mail with your response.

-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]On Behalf Of drgert1
Sent: Friday, November 16, 2007 12:52 PM
To: ap-gto@...
Subject: [ap-gto] Re: Desperately trying (this is the correct one) ... (Happy) end of the Story !



Hi All,

It should be pointed out that a broken or incompatible serial cable
was the root cause of the problem. The AP mount was in no way at fault.

To prevent bad user experience like this in the future AP might
consider to add a simple serial cable that is known to work to the
mount package when shipped (cost should not be an issue) (maybe even
include a USB adapter)

OR

Have known good serial cables / USB adapters available for purchase at
AP for users who don't know their ways around debugging or knowing
about the peculiarities of serial communications cables and computer
interfaces.

AND

When any 'bug report' on communication issues comes in ask the user to
replace the serial cable with a known good one. (see above how to get it).

Clear Skies,

Gert

--- In ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com, "Chuck Faranda" <mail_lists2@...> wrote:

Great to hear you are up and running!

Regards,
Chuck Faranda
http://ccdastro. <http://ccdastro.net> net



----- Original Message -----
From: pepineus
To: ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com
Sent: Friday, November 16, 2007 7:11 AM
Subject: [ap-gto] Re: Desperately trying (this is the correct one) ...
(Happy) end of the Story !


Et voil ! COM1 works with Sky's own
driver, TeleAPI ASCOM driver, and Pulseguide.










To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links





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No virus found in this incoming message.
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Re: Desperately trying (this is the correct one) ... (Happy) end of the Story !

 

We are planning to provide these, but have not finalized the details yet.


Marj Christen
Astro-Physics, Inc
11250 Forest Hills Road
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
www.astro-physics.com
Please include this e-mail with your response.

-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]On Behalf Of drgert1
Sent: Friday, November 16, 2007 12:52 PM
To: ap-gto@...
Subject: [ap-gto] Re: Desperately trying (this is the correct one) ... (Happy) end of the Story !



Hi All,

It should be pointed out that a broken or incompatible serial cable
was the root cause of the problem. The AP mount was in no way at fault.

To prevent bad user experience like this in the future AP might
consider to add a simple serial cable that is known to work to the
mount package when shipped (cost should not be an issue) (maybe even
include a USB adapter)

OR

Have known good serial cables / USB adapters available for purchase at
AP for users who don't know their ways around debugging or knowing
about the peculiarities of serial communications cables and computer
interfaces.

AND

When any 'bug report' on communication issues comes in ask the user to
replace the serial cable with a known good one. (see above how to get it).

Clear Skies,

Gert

--- In ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com, "Chuck Faranda" <mail_lists2@...> wrote:

Great to hear you are up and running!

Regards,
Chuck Faranda
http://ccdastro. <http://ccdastro.net> net



----- Original Message -----
From: pepineus
To: ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com
Sent: Friday, November 16, 2007 7:11 AM
Subject: [ap-gto] Re: Desperately trying (this is the correct one) ...
(Happy) end of the Story !


Et voilĂ  ! COM1 works with Sky's own
driver, TeleAPI ASCOM driver, and Pulseguide.






[Non-text portions of this message have been removed]


Re: Mach1 Mount production

 

I repeat that Astro-Physics has NOT accepted any orders from ANYONE and we have not set up the delivery schedule yet.


Marj Christen
Astro-Physics, Inc
11250 Forest Hills Road
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
www.astro-physics.com
Please include this e-mail with your response.

-----Original Message-----
From: ap-gto@... [mailto:ap-gto@...]On Behalf Of reddbarron2000
Sent: Friday, December 07, 2007 9:52 AM
To: ap-gto@...
Subject: [ap-gto] Re: Mach1 Mount production



I also am on the Anacortes's list and received a similar email asking
for a deposit and suggesting that we order some of the required
accessories.

I assumed that a Decmeber delivery was a bit optimistic but I'm
concerned about your statement that some people have been waiting
several years. I'm concerned about having them hold my deposit that
long. I am also concerned that the accessories that I ordered in
advance may not be compatible with changes that may be introduced in
the next few years, let alone having these items just sitting around
for that long.

Bruce

--- In ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com, "Marj" <marj@...> wrote:

There are many parts associated with the mount and they are not
quite finished yet. Please note that we have NOT accepted any orders
for these mounts yet. You are probably on Herb's waiting list.


Marj Christen
Astro-Physics, Inc
11250 Forest Hills Road
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
www.astro-physics.com
Please include this e-mail with your response.

-----Original Message-----
From: ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com [mailto: ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com]On
Behalf Of teche70
Sent: Thursday, December 06, 2007 4:10 PM
To: ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com
Subject: [ap-gto] Re: Mach1 Mount production



Thank you Marj.

I got on the list through Anacortes and they notified me I would
receive one December/January-ish. That was just their estimate. I
was just curious if thigs got backed up (or moved forward) due to
the
holidays. Thanks for the update and Happy Holidays!

Todd

--- In ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com>
com, "Marj" <marj@> wrote:

Dear Todd,

We have quite a few parts completed or nearly completed. haven't
reviewed the situation totally, but my rough estimate is that we
could start shipping in late January or early February. We have not
started the notification process yet and may not until after the
first of the year. The notification list goes back to late August
2004 (from the old 400 and 600E list).


Marj Christen
Astro-Physics, Inc
11250 Forest Hills Road
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
www.astro-physics.com
Please include this e-mail with your response.

-----Original Message-----
From: ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com
[mailto: ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com]On
Behalf Of teche70
Sent: Wednesday, December 05, 2007 9:35 AM
To: ap-gto@yahoogroups. <mailto:ap-gto%40yahoogroups.com> com
Subject: [ap-gto] Mach1 Mount production



Anyone here any details on when the Mach1 mounts may start
shipping?
Just curious.
Todd
















OT, but of interest perhaps: another low cost emission line filter source

Richard Crisp
 

I learned of this company's products this week. I have not tried their filters.

The price is certainly good. Thanks to Richard Mazzarella for finding this supplier.

http://www.optometrics.com/design/Optometrics/pdfs/FiltersCatalog.pdf


Re: having guiding problems

Dean Salman <cluster@...>
 

I have been wanting to get the PE in the mount but I can't seem to
get it working, I wonder if it is because I am under sampled. I kind
of gave up since I can do 20 second exposures ok.


--- In ap-gto@..., "Ray Gralak" <rgr@...> wrote:

Hi Roland,

If you want to reduce periodic error just for the fun of it,
then by all
means do so. Just do it and see what your results are.
I've experimented with various levels of periodic error in my
1200GTO mount
(not only did I reduce PE but I made it artificially higher for
testing by
loading an appropriate PE curve). Using a 5-second autoguider cycle
just by
turning on PEM reduced FWHM by 0.15 arc-seconds when going from 3.0
arc-sec
PE to 0.5 arc-sec . The stars looked just as round in each case,
but the
FWHM of the stars with PEC on were tighter.

Also, for those autoguiding through a narrowband filter with an
SBIG camera,
good PEC is critical. It will allow you to increase the autoguider
exposure
time to get a guide star through the narrowband filter.

-Ray


Re: having guiding problems

Dean S
 

I'm also having some guiding issues with my new 1200.

I'm using an STV with guide scope at 350mm. I have been using either Auto
tracking, or if the guide star is dim, I use manual with longer exposures,
3-5 secs. I have tried the Aggressiveness settings at .5 to 1.

I calibrate the STV using the Auto mode with the mounts guiding spped at .5

My problem is over correcting, mainly in the RA. So far, 2 nights only, I
have had much better results going unguided 4 minute exposures with PEM on.

Someone suggested I try using the mount at 1x guide speed but this seems
opposite of what I want.

Can someone offer some suggestions on what to try? I honestly have never
used the STV in much more than Auto in the past and really have always
battled this to some degree and blamed it on the mount. I know that is not
the case now :)

Thanks,
Dean

----- Original Message -----
From: <chris1011@...>
To: <ap-gto@...>
Sent: Tuesday, December 11, 2007 1:33 PM
Subject: Re: [ap-gto] having guiding problems


In a message dated 12/11/2007 12:30:03 PM Central Standard Time,
rgr@... writes:


for those autoguiding through a narrowband filter with an SBIG camera,
good PEC is critical. It will allow you to increase the autoguider
exposure
time to get a guide star through the narrowband filter.
Yes, that is true indeed.

Roland


**************************************
See AOL's top rated recipes
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)






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Re: Pempro A-P Special Edition-active when shipped?

Dean S
 

Hi Alan,

Be sure and do a "Save from mount" of that graph so you can have the option
of reloading it in case you accidently overwrite it or want to try a
different one.

Dean

----- Original Message -----
From: "Alan Voetsch" <alanv12952@...>
To: <ap-gto@...>
Sent: Tuesday, December 11, 2007 2:06 PM
Subject: Re: [ap-gto] Pempro A-P Special Edition-active when shipped?


--- chris1011@... wrote:

The manual says that the error curve from the factory testing
procedures is
already
loaded into the the servo system. Is this active upon arrival, or not?
No, it is in memory, just as if you had placed your own curve into the
memory
(PEM = Periodic Error Memory). Use the keypad to turn it on or off. You
can
also use PEMPro to turn it on. In the keypad, PEM is located under Tools
in the
Main Memory. Just follow the instructions on the PEM screen.
OK, this may be why I see the large jumps when guiding. I'll turn it on
and see if they
still happen. I just went out and checked and I had turned it on 'play'
last time out. I
saw the same type of errors then, as before.

I will observe my guide corrections and then try a PEM run (if needed) to
see if it
helps. I just need to beat the incoming weather.

Alan





Astrophotography: http://www.pbase.com/avoetsch12952



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Yahoo! Groups Links




Re: Pempro A-P Special Edition-active when shipped?

Roland Christen
 

In a message dated 12/11/2007 11:01:59 PM Central Standard Time,
alanv12952@... writes:


OK, this may be why I see the large jumps when guiding. I'll turn it on and
see if they
still happen.
Whether you have PEM on or off should not make any difference when guiding as
far as large jumps. If you are seeing large jumps when guiding, then you have
something totally wrong with your overall setup. You must determine which
axis is doing this large jumping. Then you must find out the source for these
large jumps, and for that you will need to understand how the guiding loop works.
Start with the basics (check parameter numbers to see if they are correct
after doing a calibration. Then check your min/max settings to see if they are
reasonable. Record your guide corrections in both axes (the guide graph in Maxim
on your laptop screen is invaluable data for figuring out what is happening).
Then we can go from there. Again, PEM or no PEM will have NO effect on
guiding anomalies. You have something wrong with your guiding loop.

Rolando


**************************************
See AOL's top rated recipes
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)


Re: next mount

uthin8er <lleege@...>
 

The 900 is very capable of handling the C11. If portability is a must,
the 900 pulls double duty. I haul mine everywhere I go. I have several
scopes I use on the mount including a 12"LXR with an 80mm guide scope.
Also a 160mm TEC and 130EDF on a DSBS. The mount doesn't even break a
sweat. If you have the luxury of a permanent set up the close cost of
the 1200 make it a better choice.

--- In ap-gto@..., "Dan" <danjanos@...> wrote:

Hi everyone,
I am looking to upgrae my current Celestron CGE mount to a new or
used AP mount. I currently use a CF C11 along with assorted
accessories so the weight is close to 50#'s but no more.
What AP mount would fit the bill?
thanks
danny


Re: Pempro A-P Special Edition-active when shipped?

Alan Voetsch <alanv12952@...>
 

--- chris1011@... wrote:

The manual says that the error curve from the factory testing procedures is
already
loaded into the the servo system. Is this active upon arrival, or not?
No, it is in memory, just as if you had placed your own curve into the memory
(PEM = Periodic Error Memory). Use the keypad to turn it on or off. You can
also use PEMPro to turn it on. In the keypad, PEM is located under Tools in the
Main Memory. Just follow the instructions on the PEM screen.
OK, this may be why I see the large jumps when guiding. I'll turn it on and see if they
still happen. I just went out and checked and I had turned it on 'play' last time out. I
saw the same type of errors then, as before.

I will observe my guide corrections and then try a PEM run (if needed) to see if it
helps. I just need to beat the incoming weather.

Alan





Astrophotography: http://www.pbase.com/avoetsch12952


Re: having guiding problems

Ray Gralak <rgr@...>
 

Hi Roland,

If you want to reduce periodic error just for the fun of it,
then by all
means do so. Just do it and see what your results are.
I've experimented with various levels of periodic error in my 1200GTO mount
(not only did I reduce PE but I made it artificially higher for testing by
loading an appropriate PE curve). Using a 5-second autoguider cycle just by
turning on PEM reduced FWHM by 0.15 arc-seconds when going from 3.0 arc-sec
PE to 0.5 arc-sec . The stars looked just as round in each case, but the
FWHM of the stars with PEC on were tighter.

Also, for those autoguiding through a narrowband filter with an SBIG camera,
good PEC is critical. It will allow you to increase the autoguider exposure
time to get a guide star through the narrowband filter.

-Ray


Mach1GTO

andrew950222 <andrew.j.smith1905@...>
 

Hi - I have just put my name down for a Mach1GTO. Is it possible to
give an indication of what the wait time might be to allow me to
consider what interim options to consider.

Thanks Andrew


Re: having guiding problems

Alan Voetsch <alanv12952@...>
 

Hey Roland,

--- chris1011@... wrote:

Another question: should i run a 'PEM' routine before the above? I have not
yet done so.
Not necessary unless you want to do unguided imaging. PEM is for periodic
error compensation. That means during any unguided imaging, you can drastically
reduce the priodic error (which is a very slow moving error that crops up after
tracking for a fairly long time period within the 6.4 minute worm cycle). The
error is small to begin with, between 3 and 5 arc seconds, so there is no use
trying to chase your guiding problems with yet another issue - an issue that
really does not affect guiding one iota.
I have to ask, because NOT getting rid of the periodic error is contrary to everything
I've ever heard. So, why would I not want to drastically reduce the error?

Many thnaks,
Alan




Astrophotography: http://www.pbase.com/avoetsch12952


Re: having guiding problems

Roland Christen
 

In a message dated 12/11/2007 12:30:03 PM Central Standard Time,
rgr@... writes:


for those autoguiding through a narrowband filter with an SBIG camera,
good PEC is critical. It will allow you to increase the autoguider exposure
time to get a guide star through the narrowband filter.
Yes, that is true indeed.

Roland


**************************************
See AOL's top rated recipes
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)


Re: having guiding problems

Roland Christen
 

In a message dated 12/11/2007 11:57:43 AM Central Standard Time,
alanv12952@... writes:


I have to ask, because NOT getting rid of the periodic error is contrary to
everything
I've ever heard. So, why would I not want to drastically reduce the error?
Because it is drastically so low to begin with. What mount are you coming
from?

If you want to reduce periodic error just for the fun of it, then by all
means do so. Just do it and see what your results are.

Rolando


**************************************
See AOL's top rated recipes
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)


Re: having guiding problems

Roland Christen
 

In a message dated 12/10/2007 10:05:03 PM Central Standard Time,
teche70@... writes:


How long could you go, unguided, with the Mach1 mount...under 800mm
FL.?
That will depend on how well drift aligned that you are. You can get the
periodic error down around 1 arc sec, so if you have less than 1 arc sec drift in
both axes for X minutes, then you will have 1 arc sec tracking for X minutes
and you will be able to go unguided for X minutes..

Rolando


**************************************
See AOL's top rated recipes
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)


Re: having guiding problems

teche70
 

"Not necessary unless you want to do unguided imaging"
How long could you go, unguided, with the Mach1 mount...under 800mm
FL.?

Todd


--- In ap-gto@..., chris1011@... wrote:

In a message dated 12/10/2007 1:59:26 PM Central Standard Time,
alanv12952@... writes:


Thank you for the guidance. I will attempt to view the ST-4
calibration at
next
opportunity.

Another question: should i run a 'PEM' routine before the above?
I have not
yet done so.

Alan
Not necessary unless you want to do unguided imaging. PEM is for
periodic
error compensation. That means during any unguided imaging, you can
drastically
reduce the priodic error (which is a very slow moving error that
crops up after
tracking for a fairly long time period within the 6.4 minute worm
cycle). The
error is small to begin with, between 3 and 5 arc seconds, so there
is no use
trying to chase your guiding problems with yet another issue - an
issue that
really does not affect guiding one iota.

Rolando



**************************************
See AOL's top rated recipes
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)


[Non-text portions of this message have been removed]


StarGPS-NX GPS

Chris Spratt
 

Will the StarGPS-NX work with an 600E GOTO? What cable should I use (a
Meade)?

Thanks,

Chris Spratt
Victoria, BC


Re: having guiding problems

John Winfield
 

I've been calibration/guiding in Maxim at 0.5x since I was concerned
about what the minimum move time for the mount would be when doing
small corrections at the (relatively) high speed of 1x.
Running at 0.5x means the correction durations would be twice as long
as at 1x for a given guide star error.

What's the minimum move duration the mount (AP900) can reliably
perform at 1x?

John


--- In ap-gto@..., chris1011@... wrote:

In a message dated 12/9/2007 1:09:22 PM Central Standard Time,
alanv12952@... writes:


All attempts to guide failed until I did the calibration at 0.5
speed, and
guiding at
0.25.
You MUST calibrate at 1x, otherwise you may not get good cal
numbers. With
the ST4 guider, you are working basically blind, so it won't be easy
for you to
figure out what is going on. You might want to place an eyepiece
into your
telescope while the ST4 is guiding, so you can see what is really
happening,
instead of relying on the numbers on the guider screen. Otherwise
you will be
forever groping in the dark, not knowing cause and effect.

Calibration at 1x is needed to get the proper amount of movement on
the guide
chip. Just make sure that the cal time is long enough to get 50 or
so pixel
movement, but not too long to run the star off the chip. You can
then adjust
the guide speed to 1x, .5x or .25x if you wish to slow down the
movement,
however .25x is almost never needed unless you have settings that
are somehow
screwy.

While the ST4 is calibrating, LOOK through your eyepiece so you can
understand what is happening. Again, if you don't do this at least
once with your
setup, then you will be forever wondering what is happening. If you
do use an
eyepiece, and things don't look right, then at least you can explain
to all of us
what you are seeing. Right now you can only say that something is
not working
right, so that leaves all of us to guess. Take the guesswork out of the
equation and LOOK! (that advise is for anyone who has any guiding
issues with their
equipment, no matter what equipment you are using).

Roland Christen




**************************************
See AOL's top rated recipes
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)




Re: having guiding problems

Alan Voetsch <alanv12952@...>
 

Roland,

Thank you for the guidance. I will attempt to view the ST-4 calibration at next
opportunity.

Another question: should i run a 'PEM' routine before the above? I have not yet done so.

Alan

--- chris1011@... wrote:
You MUST calibrate at 1x, otherwise you may not get good cal numbers. With
the ST4 guider, you are working basically blind, so it won't be easy for you to
figure out what is going on. You might want to place an eyepiece into your
telescope while the ST4 is guiding, so you can see what is really happening,
instead of relying on the numbers on the guider screen. Otherwise you will be
forever groping in the dark, not knowing cause and effect.

Calibration at 1x is needed to get the proper amount of movement on the guide
chip. Just make sure that the cal time is long enough to get 50 or so pixel
movement, but not too long to run the star off the chip. You can then adjust
the guide speed to 1x, .5x or .25x if you wish to slow down the movement,
however .25x is almost never needed unless you have settings that are somehow
screwy.

While the ST4 is calibrating, LOOK through your eyepiece so you can
understand what is happening. Again, if you don't do this at least once with your
setup, then you will be forever wondering what is happening. If you do use an
eyepiece, and things don't look right, then at least you can explain to all of us
what you are seeing. Right now you can only say that something is not working
right, so that leaves all of us to guess. Take the guesswork out of the
equation and LOOK! (that advise is for anyone who has any guiding issues with their
equipment, no matter what equipment you are using).


Astrophotography: http://www.pbase.com/avoetsch12952