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Re: Achieving CWD
Sonny Edmonds
Hi Bill!
I'm pretty anal about my set up. I level my tripod, with the head off. I've long done that with my AVX mount, and now with my GM811GHD. The idea is to Start off with the base plumb to the earth. Then, when the head is set on the mounts base, it goes on plumb. (In my case I have the 12" extension to make a portable pier out of it. and the RA head is "permanently" attached to the extension.") Since the parts are precision machined, they fit together straight. The RA setting is accurate, and the azimuth is plumb to the Earth. (Flat) The Dec swings so it follows the Prime Vertical, and the RA is aligned to the North/South Meridian and when Polar Aligned, zeroed to the North Celestial Pole. Now, we aren't building a 100 story sky scraper. But if we were, and we got hap-hazard about starting out plumb, we would be building the leaning tower of Pizza. ;^) So I go to greater pains to begin plumb. As plumb as I can. And I use my digital level I know to be accurate, on a bar of cold rolled Steel It's just doing the best I can to be accurate and consistent. -- SonnyE (I suggest viewed in full screen) |
Re: Permanent Pier Parking... behavior seems wrong
David, you are correct.? Paul K caught my error last night and set me straight.? I apologize.?? I was wrong to say it was different between the G-1 and G-2.? There is Warm Start, Warm Restart, and Cold Start options on both Gemini models.?? I had to boot up my G-1 and finally see the three different options appear.? In the G-2, the display text does not scroll across the multiline display.? In the G-1 the messages scroll across a one line LED display.? My mind was just looking for the word "Warm" to mean "a bootup that recalls the model values," I never paid attention to the next word, and I never noticed if the next word was Start or Restart.? On the G-2 these options are clearly one below the other, but I just got a G-2 recently.? I never understood the difference seeing them on the G-2, and didn't know they were discussed in the G-1 manual at all....til last night.?? Up above in this thread, I attached a copy of the G-1 manual that explains these choice options on its page 38.? That section of the manual also explains under what conditions you would pick one over the other.?? After using the system for a decade, I learned something new.? And...I apologize for my error.?? They say Helen's was the face that launched a thousand ships.? Here the prefix "Re" has launched a thousand words, (maybe a thousand apologies from me).?? Related: The handy Gemini.net? center? section below the South diamond button has an option "Unpark".? I use that if I have parked my system, and then decide....one more target!? Unpark starts the RA tracking (Sidereal rate or whatever you were using last) and the model values are still in the system.? So if you have a need...."Unpark" is also an option on Gemini.net to get out of a parked position...if the Gemini has not been powered off yet.?? Have fun, all,...? Michael On Sun, Jan 24, 2021, 2:26 AM David C. Partridge <david.partridge@...> wrote:
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Re: Permanent Pier Parking... behavior seems wrong
¿ªÔÆÌåÓýMichael, ? G-1 DOES have Warm Restart? ? David |
Re: Permanent Pier Parking
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 On Sat, Jan 23, 2021 at 5:37 PM Russ via <njrusty=[email protected]> 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.? --
Brian? Brian Valente portfolio |
Re: Permanent Pier Parking... behavior seems wrong
Hello Russ,
The way you start from inside is about the same I do with my G11G mount powered by a WiFi controlled outlet (Kasa brand) which I can activate from my iPhone. To get the Prompt from the Gemini Telescope app, you must go to Setup>Configure Telescope and select the radio button for "Prompt if not Started" in the Boot Mode Box at top center, then click OK to save. After you click on Connect at the bottom of the virtual Hand Controller you should be getting the prompt with how to start. Setting the prompt in the actual Hand Controller may not do the same thing. After I flop over to the Home Position I can then slide open the roof remotely with a garage door opener arrangement. But I always watch the progress on a security camera to make sure the scope is down before moving the roof. Hope this helps you out. John |
Re: Permanent Pier Parking... behavior seems wrong
Hi Russ make sure that option is selected, you can configure it in your Gemini Telescope.net and then here: On Sat, Jan 23, 2021 at 6:38 PM Russ via <njrusty=[email protected]> wrote: I've setup the handheld to 'Prompt' start position location on powerup.? However; since I connect remotely into my obs;? --
Brian? Brian Valente portfolio |
Re: Jan29th POD Shipment
Hi Brian,
I'm sure I can complete it in 12 months, but depending on clear skies, it could be as little as 9 months.? The Herschel 400 is one of the Astronomical League Observing Programs. I'm still very much a visual amateur astronomer, so I really enjoy star hopping, and learning the night sky in-depth.? I'm buying the Losmandy G11, because I know that eventually I'll get into some astrophotography and that will be my mount for the future! Andrew -- Main Telescope:?Explore Scientific 152ED APO Refractor in Carbon Fiber Mount:?Explore Scientific EXOS2-GT Equatorial Other Scopes:?Meade 8"LX90 SCT, William Optics ZenithStar 66mm APO Refractor Binoculars:?Oberwerk 20x80 & 25x100 Giant Binoculars, Alpen 8x42 |
Re: Permanent Pier Parking... behavior seems wrong
Apologies, I have just realized, thanks to Paul K's knowledge, that the Gemini-1 also has offered all 3 boot options, same as the Gemini-2: Warm Restart Warm Start Cold Start I never knew that!? I thought both Warm options were identical.? Now thanks to this conversation, I realize they are different.? ? See page 38 of the Gemini-1 manual attached.? It describes these options.? It says that if you did not move your mount (AZ or elevation or move the tripod) and did not move the scope (loosen the clutches and move it) then you should do a Warm Restart.?? If you moved the scope by loosening the clutches, but the mount itself has not moved, use Warm Start (keeps the sky model, but has to resynch the encoders to the first star). If you moved the mount (adjusted AZ or elevation or moved the tripod, or you have a bad model), use Cold Start.? Sorry for sowing confusion.? When in doubt read the manual.? Here it is! Best regards, and thanks again Paul, Apologetically, Michael On Sat, Jan 23, 2021, 6:38 PM Russ via <njrusty=[email protected]> wrote: I've setup the handheld to 'Prompt' start position location on powerup.? However; since I connect remotely into my obs;? |
Re: Jan29th POD Shipment
congrats! sounds like an ambitious project re:?Herschel 400 Observing Guide how long do you anticipate this may take you? On Sat, Jan 23, 2021 at 5:51 PM ACorkill <viram@...> wrote: Hi All, --
Brian? Brian Valente portfolio |
Re: Permanent Pier Parking... behavior seems wrong
I've setup the handheld to 'Prompt' start position location on powerup.? However; since I connect remotely into my obs;?
1)? I apply power to the mount (via X10 Power Module). 2)? I then double click on the 'Gemini Telescope' icon on desktop, launches the Gemini software to duplicate the hand held. 3)? Was expecting to get a prompt asking how mount is parked but not getting such a prompt. Not sure what is happening with the software.? Definitely fun experimenting and seeing how this all works together. |
Re: Permanent Pier Parking... behavior seems wrong
Russ, I think I followed your steps.?? Is this listing of the steps right? You have a Gemini-2.? (G-1 has no option for Warm Restart) Put mount at CWD. G-2 is off. You power on G-2 the first time. Boot as Warm Start (requires mount start at CWD). Mount behaved normally Slew to a new desired park position.? Tell Gemini this is Home position? Slew somewhere else. Tell mount to Park at Home. It did move to Home and Parked (tracking off). You turned off the G-2 You turned on the G-2 the second time. Then you ran Warm Start again and the mount pointing is wrong. _______ Is that list of steps above correct? If not correct, please correct the steps I wrote. _______ If my steps above are correctly written:? ? ? Warm Reboot If you did a Warm Boot instead of the required Warm Reboot:? Then according to what Brian wrote,? when the mount was actually Parked at Home (not CWD required by a? Warm Boot), the Gemini thought you were actually at CWD position.? But it was not at CWD.? So it went way out of expected pointing.?? If I am guessing right, based on what Brian explained, wherever you Park? (Home or CWD)? use Warm Restart (forget Warm Start unless you are always parked at CWD).? Warm Restart should always recall where it was actually Parked and I park properly knowing where you left it.? I'd like you to verify this behavior works right.?? On a Gemini-1, this is easier.? There is no Warm Restart option.? A G-1 always knows where it was Parked, and always unparks with the correct knowledge of where it was Parked using it's Warm Boot option.?? Stay well, and keep testing these Park and unpark options.? Then let's document the correct Park and Start operations once we figure it out!?? Best, Michael On Sat, Jan 23, 2021, 5:37 PM Russ via <njrusty=[email protected]> 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.? |
Re: Permanent Pier Parking
Russ,
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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 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.? |
Re: Permanent Pier Parking
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. |
Re: RegiStar software
The plugin is included with CCDInspector, but you can buy it separately for less than half the price. Just look for CCDIS/p plugin download.
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Regards, ? ? ?-Paul On Sat, Jan 23, 2021 at 07:38 PM, Stu Beaber wrote:
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Re: RegiStar software
Thanks Paul...yes I've been using CCDstack for quite a while now. From what I see, to use the plugin you also need CCDInspecter, Right? If I can't get RegiStar going again, I may look into that... Tks, Stu On Sat, Jan 23, 2021 at 7:22 PM Paul Kanevsky <yh@...> wrote: Ah, yes, I understand. If you decide to stay with CCDStack, you may want to try the CCDIS/p CCDStack plugin (full disclosure: I wrote it) to do the same type of alignment, rotation and even scale changes that Registar does.? |
Re: RegiStar software
Ah, yes, I understand. If you decide to stay with CCDStack, you may want to try the CCDIS/p CCDStack plugin (full disclosure: I wrote it) to do the same type of alignment, rotation and even scale changes that Registar does.?
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Regards, ? ? ?-Paul On Sat, Jan 23, 2021 at 06:54 PM, Stu Beaber wrote:
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Re: RegiStar software
Yeah Paul I can but I do multi night imaging ...sometimes a month apart due to weather and I get a little bit of rotation...CCDStack is a bit of trouble to eliminate the rotation. Registar did a great job effortlessly the first time...I liked it...I'm sure it something I'm doing wrong...Only my second time using it! Stu? ly On Sat, Jan 23, 2021 at 6:41 PM Paul Kanevsky <yh@...> wrote: Stu, can't you use CCDStack to align and stack? Maybe I'm misunderstanding what you're trying to do. |
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