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Starting new thread regarding parking of mount in observatory/permanent pier since a search of the archives are showing this topic to be over 10 years old without an update.
So, in my case, with mount in an observatory on a permanent pier, I always park at night at CWD (all bubble leveled) and have been doing a Warm Restart on next night.? Should I only be doing a Warm Start instead of Warm Restart??
Additionally, I am thinking of creating a "Park" position at 90 degrees from CWD (telescope pointing to eastern horizon) so I can close the roof (avoiding getting dust into scope) and after roof closed, select park at CWD for its home/storage position.? Is this also do-able?? ?Thanks!!!
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Hi Russ
sounds like a great project - i hope you keep us all in the loop!
For more permanent pier-based setups, I usually see one of two approaches:
1. Park the mount at CWD and warm start. Warm start = "warm start at CWD position" or 2. Define a Home position (such as 90 degrees) and just park it there and warm restart. Warm restart = "warm start but not at cwd position"
?
Starting new thread regarding parking of mount in observatory/permanent pier since a search of the archives are showing this topic to be over 10 years old without an update.
So, in my case, with mount in an observatory on a permanent pier, I always park at night at CWD (all bubble leveled) and have been doing a Warm Restart on next night.? Should I only be doing a Warm Start instead of Warm Restart??
Additionally, I am thinking of creating a "Park" position at 90 degrees from CWD (telescope pointing to eastern horizon) so I can close the roof (avoiding getting dust into scope) and after roof closed, select park at CWD for its home/storage position.? Is this also do-able?? ?Thanks!!!
-- Brian?
Brian Valente portfolio
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Super!? Thanks guys for opening this topic!? Like all good riddles, every answer brings up more questions.??
On the Gemini-1, there are 2 options:??
Cold Start (erase all model {error} factors to zero and boot up assuming scope is in CWD position),?
or Warm Start...resume operation from last parked position, and re-use the stored model factors.
That is, the Gemini-1 records where it was parked and resumes from there on its Warm Start.
Now I just got a Gemini-2 and could not fathom the difference between "Warm Start" and the new option "Warm Restart."??
From Brian's writing just now, I have a new understanding: these function slightly differently from the Gemini-1 operation.??
But then comes a design related and usage question:
Why do you need to have a G-2 Warm Start (from CWD only) when a Warm Restart (from where you last parked) could do it all, as Warm Start does on a Gemini-1?? ? Under what circumstances would you need to use the Warm Start on a Gemini-2?? Wouldn't using G-2 "Warm Restart" cover all the bases??
I do know of G-1 owners with roll-off roof observatories who do park at horizontal (to use a lower roof!).? That's a great feature to park anywhere you like!
I wonder how Gemini-net handles this.? Can Gemini.net tell a G-2 from a G-1? ...I'm sure it can ask for the firmware number or the unit type which G-1 displays on its boot up.? Does Gemini.net then know the difference in Warm Start behavior between the G-1 and the G-2?? Paul K will know this detail...!
All the best, Michael
On Sat, Jan 23, 2021, 8:35 AM Brian Valente < bvalente@...> wrote: Hi Russ
sounds like a great project - i hope you keep us all in the loop!
For more permanent pier-based setups, I usually see one of two approaches:
1. Park the mount at CWD and warm start. Warm start = "warm start at CWD position" or 2. Define a Home position (such as 90 degrees) and just park it there and warm restart. Warm restart = "warm start but not at cwd position"
?
Starting new thread regarding parking of mount in observatory/permanent pier since a search of the archives are showing this topic to be over 10 years old without an update.
So, in my case, with mount in an observatory on a permanent pier, I always park at night at CWD (all bubble leveled) and have been doing a Warm Restart on next night.? Should I only be doing a Warm Start instead of Warm Restart??
Additionally, I am thinking of creating a "Park" position at 90 degrees from CWD (telescope pointing to eastern horizon) so I can close the roof (avoiding getting dust into scope) and after roof closed, select park at CWD for its home/storage position.? Is this also do-able?? ?Thanks!!!
--
Brian?
Brian Valente portfolio
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Great Questions!!!? Looking forward to replies!!!!? :-)
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Russ,
A pier and a roll off shed is what I have also. Normally the mount sits in the CWD position until I go to start up. I then use Park at Home in the menu to get the counterweight bar to be horizontal, and the scope axis is horizontal too in this position. Then I can roll off the roof without collision. To set this orientation, I used the buttons on the Hand Controller (with speed set at Slew) to move into position, then used Set Home in the Hand Controller Park menu. From this Home position, I usually just go straight to a bright star, and Sync after confirming it's centered in the eyepiece, guide cam, or main cam. Then again to close up, I hit Park at Home to fold over, close the roof, then hit Park at CWD as the stationary position. I usually put a cover over the scope if I won't be returning for at lest several days.
But with Home and CWD already set, I usually don't need the Hand Controller for a new session. After powering on the mount, I start the Gemini app and hit connect. It will give me a pop up on the computer screen which says Cold Start, Warm Start (from CWD), and Warm Restart. I choose Warm Start and I'm good to go. For this pop up, you must go the the app's Set Up Menu, and under Configure Telescope, select Prompt if Not Started in the Boot Mode box. You can also select Cold Start, Warm Start, or Warm Restart as the preferred start mode, but if prefer to select how I am starting in the pop up. With Warm Start my last model will be used and I can usually go directly to the bright star. I may have to slew a bit if I released the clutches, or if I bumped the scope a bit, and then hit Sync again. The model can last quite a few sessions unless I sync on the wrong star, or Sequence Generator Pro slews to the wrong part of the sky, which can happen when clouds mess up a platesolve.
But with CWD and Home set as above, I can just flop over whenever I need to move the roof. That's about it.
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I park my RC 10 on parallel to earth with the scope on the east and the scope pointed about 20 Degrees down so that dust will not collect as much. You can set this as your home position using the hand control and it will work with ascom then.
Hope this helps.
Aubrey
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Russ,
A pier and a roll off shed is what I have also. Normally the mount sits in the CWD position until I go to start up. I then use Park at Home in the menu to get the counterweight bar to be horizontal, and the scope axis is horizontal too in this position. Then
I can roll off the roof without collision. To set this orientation, I used the buttons on the Hand Controller (with speed set at Slew) to move into position, then used Set Home in the Hand Controller Park menu. From this Home position, I usually just go straight
to a bright star, and Sync after confirming it's centered in the eyepiece, guide cam, or main cam. Then again to close up, I hit Park at Home to fold over, close the roof, then hit Park at CWD as the stationary position. I usually put a cover over the scope
if I won't be returning for at lest several days.
But with Home and CWD already set, I usually don't need the Hand Controller for a new session. After powering on the mount, I start the Gemini app and hit connect. It will give me a pop up on the computer screen which says Cold Start, Warm Start (from CWD),
and Warm Restart. I choose Warm Start and I'm good to go. For this pop up, you must go the the app's Set Up Menu, and under Configure Telescope, select Prompt if Not Started in the Boot Mode box. You can also select Cold Start, Warm Start, or Warm Restart
as the preferred start mode, but if prefer to select how I am starting in the pop up. With Warm Start my last model will be used and I can usually go directly to the bright star. I may have to slew a bit if I released the clutches, or if I bumped the scope
a bit, and then hit Sync again. The model can last quite a few sessions unless I sync on the wrong star, or Sequence Generator Pro slews to the wrong part of the sky, which can happen when clouds mess up a platesolve.
But with CWD and Home set as above, I can just flop over whenever I need to move the roof. That's about it.
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Russ,
My setup is on a permanent pier in a ROR observatory.? I set my "Home" position to be 90 degrees, where my counterweight bar is level to the deck, and park at Home when I finish observing.? Need to do that or the roof will hit the telescope when closing it.? Added benefit also is I can roll the roof off before I observe to let the temperature regulate, without starting Gemini and without hitting the telescope.
I always start Gemini with "warm restart" from Home position.? I understood it to be the same as Brian's description.? It works fine with no problems, models are good, accuracy is good.? Warm Start is used when starting from CWD position.
Once you set a Home position, you will have two park choices, Park at CWD or Park at Home.
So yes, its do-able (and very convenient too).
- Jerry??
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Nice writeup and description Jerry
On Sat, Jan 23, 2021 at 12:54 PM < gford1@...> wrote: Russ,
My setup is on a permanent pier in a ROR observatory.? I set my "Home" position to be 90 degrees, where my counterweight bar is level to the deck, and park at Home when I finish observing.? Need to do that or the roof will hit the telescope when closing it.? Added benefit also is I can roll the roof off before I observe to let the temperature regulate, without starting Gemini and without hitting the telescope.
I always start Gemini with "warm restart" from Home position.? I understood it to be the same as Brian's description.? It works fine with no problems, models are good, accuracy is good.? Warm Start is used when starting from CWD position.
Once you set a Home position, you will have two park choices, Park at CWD or Park at Home.
So yes, its do-able (and very convenient too).
- Jerry??
-- Brian?
Brian Valente portfolio
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Problem:? I used Warm Start tonight and as usual had my scope parked at CWD.? I can slew the scope anywhere and when I say park at CWD, it does.?
Now, I then slewed the scope to point East and slightly down so I can prevent dust from getting on lense when closing roof.? Forgot the actual verbage in handheld but I selected a new home position there.? I then slewed the scope to different location and had to goto the new park position and it did.? Now, I powered off the mount (while waiting for clouds to go by) and powered back up 30 minutes later.
Now the scope is lost again.? If I select to park at CWD, it goes way off but it will park at home position.??
Based on this it appears it lost its CWD position after poweroff due to the new home position.
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Russ,
If you want to restart the mount anywhere other than at the CWD position, you need to use Warm Restart, not Warm Start. Warm Start expects the mount to be in the CWD position when you select it.
Regards,
? ? ?-Paul
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On Sat, Jan 23, 2021 at 08:37 PM, Russ wrote:
Problem:? I used Warm Start tonight and as usual had my scope parked at CWD.? I can slew the scope anywhere and when I say park at CWD, it does.?
Now, I then slewed the scope to point East and slightly down so I can prevent dust from getting on lense when closing roof.? Forgot the actual verbage in handheld but I selected a new home position there.? I then slewed the scope to different location and had to goto the new park position and it did.? Now, I powered off the mount (while waiting for clouds to go by) and powered back up 30 minutes later.
Now the scope is lost again.? If I select to park at CWD, it goes way off but it will park at home position.??
Based on this it appears it lost its CWD position after poweroff due to the new home position.
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Russ
>>>.? I then slewed the scope to different location and had to goto the new park position and it did.? Now, I powered off the mount (while waiting for clouds to go by) and powered back up 30 minutes later.
Also you don't have to power down the mount - you can either leave it parked with power on, or you can also just stop tracking where it is and when the clouds pass, re-enable tracking
If you aren't powering down, you can skip the whole park thing completely
you can slew it to whatever position best works for you (ROR, etc.) and just disable tracking.?
then when you're ready to go again, you can enable tracking and pick up from where you left off
Problem:? I used Warm Start tonight and as usual had my scope parked at CWD.? I can slew the scope anywhere and when I say park at CWD, it does.?
Now, I then slewed the scope to point East and slightly down so I can prevent dust from getting on lense when closing roof.? Forgot the actual verbage in handheld but I selected a new home position there.? I then slewed the scope to different location and had to goto the new park position and it did.? Now, I powered off the mount (while waiting for clouds to go by) and powered back up 30 minutes later.
Now the scope is lost again.? If I select to park at CWD, it goes way off but it will park at home position.??
Based on this it appears it lost its CWD position after poweroff due to the new home position.
-- Brian?
Brian Valente portfolio
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Michael Herman
Paul Kanevsky