Date   

Re: Mach2 - Imaging in frigid night

Roland Christen
 

It didn't occur to me to take pictures of the readheads, which are marked as Low Temp. About 20% of the mounts have them.

Rolando

-----Original Message-----
From: Terry Martin <terry@...>
To: main@ap-gto.groups.io
Sent: Fri, Jan 22, 2021 8:42 pm
Subject: Re: [ap-gto] Mach2 - Imaging in frigid night

Thank you Roland,

I feel much, much better now.  I am a Mechanical Engineer, so I love taking things apart, but I won't be taking the Mach2 apart. .....at least for a while anyways.

Terry

--
Roland Christen
Astro-Physics


Re: Mach2 - Imaging in frigid night

Terry Martin
 

Thank you Roland,

I feel much, much better now.  I am a Mechanical Engineer, so I love taking things apart, but I won't be taking the Mach2 apart. .....at least for a while anyways.

Terry


Re: Mach2 - Imaging in frigid night

Roland Christen
 

Even with so-so seeing, the mount's running pretty good (see below). I switched from sidereal tracking to King rate in the keypad and the RA tracking immediately went down from 0.2 to 0.15 rms and for some periods down below 0.1. Reason I used the King rate is because the object is just above 35 degrees altitude, so there's lots of atmospheric refraction which requires a slower rate than Sidereal.

Rolando



-----Original Message-----
From: Roland Christen via groups.io <chris1011@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Fri, Jan 22, 2021 8:16 pm
Subject: Re: [ap-gto] Mach2 - Imaging in frigid night

Wow, cool! What are you shooting?

Rolando


-----Original Message-----
From: Tim Morrill via groups.io <helo4@...>
To: main@ap-gto.groups.io
Sent: Fri, Jan 22, 2021 7:59 pm
Subject: Re: [ap-gto] Mach2 - Imaging in frigid night

Hey Roland.
I’ve got my Mach2 up and running tonight as well.
Its currently 14° Here in central Iowa. So not too far from you. Going to be imaging all night. So far it’s doing great.
getting 10 minutes unguided exposures with no problem.
Running a Takahashi FSQ106mm on it. Cold weather doesn’t seem to faze the mount one bit. 😀

Tim

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics


Re: Mach2 - Imaging in frigid night

Roland Christen
 


Just came in myself.  I'm located in my living room, warming up in front of the fireplace, in my comfy chair, jammies on, wrapped in my thick bathrobe, feet propped up on the ottoman wearing my pink bunny slippers, but also a nice glass of bourbon, neat of course.   A nice way to warm up.   
Ouch! That's mean!! Angry face with horns

(Sounds great though)

Rolando


-----Original Message-----
From: Jeff B <mnebula946@...>
To: main@ap-gto.groups.io
Sent: Fri, Jan 22, 2021 8:21 pm
Subject: Re: [ap-gto] Mach2 - Imaging in frigid night

Just came in myself.  I'm located in my living room, warming up in front of the fireplace, in my comfy chair, jammies on, wrapped in my thick bathrobe, feet propped up on the ottoman wearing my pink bunny slippers, but also a nice glass of bourbon, neat of course.   A nice way to warm up.   

Jeff   

On Fri, Jan 22, 2021 at 8:59 PM Terry Martin <terry@...> wrote:
Hi Rolando,

How can I tell whether my Mach2 has Extended Temperature Encoders in it or not?  I just received my Mach2 a couple days ago and there was no paper work with it.  Supposedly, I ordered the mount from a vendor with the Extended Temp encoders, but I don't know what I got.

Terry

--
Roland Christen
Astro-Physics


Re: Mach2 - Imaging in frigid night

Karen Christen
 

Now there’s an image I can’t unsee….   🤣

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Jeff B
Sent: Friday, January 22, 2021 8:21 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 - Imaging in frigid night

 

Just came in myself.  I'm located in my living room, warming up in front of the fireplace, in my comfy chair, jammies on, wrapped in my thick bathrobe, feet propped up on the ottoman wearing my pink bunny slippers, but also a nice glass of bourbon, neat of course.   A nice way to warm up.   

 

Jeff   

 

On Fri, Jan 22, 2021 at 8:59 PM Terry Martin <terry@...> wrote:

Hi Rolando,

How can I tell whether my Mach2 has Extended Temperature Encoders in it or not?  I just received my Mach2 a couple days ago and there was no paper work with it.  Supposedly, I ordered the mount from a vendor with the Extended Temp encoders, but I don't know what I got.

Terry


--
Karen Christen
Astro-Physics


Re: Mach2 tracking below custom horizon

Worsel
 

Ray

APPC Pro notified me of an update (1.8.8.17) which installed cleanly.

Thanks!

Bryan


Re: Mach2 - Imaging in frigid night

Jeff B
 

Just came in myself.  I'm located in my living room, warming up in front of the fireplace, in my comfy chair, jammies on, wrapped in my thick bathrobe, feet propped up on the ottoman wearing my pink bunny slippers, but also a nice glass of bourbon, neat of course.   A nice way to warm up.   

Jeff   

On Fri, Jan 22, 2021 at 8:59 PM Terry Martin <terry@...> wrote:
Hi Rolando,

How can I tell whether my Mach2 has Extended Temperature Encoders in it or not?  I just received my Mach2 a couple days ago and there was no paper work with it.  Supposedly, I ordered the mount from a vendor with the Extended Temp encoders, but I don't know what I got.

Terry


Re: Mach2 - Imaging in frigid night

Roland Christen
 

Wow, cool! What are you shooting?

Rolando


-----Original Message-----
From: Tim Morrill via groups.io <helo4@...>
To: main@ap-gto.groups.io
Sent: Fri, Jan 22, 2021 7:59 pm
Subject: Re: [ap-gto] Mach2 - Imaging in frigid night

Hey Roland.
I’ve got my Mach2 up and running tonight as well.
Its currently 14° Here in central Iowa. So not too far from you. Going to be imaging all night. So far it’s doing great.
getting 10 minutes unguided exposures with no problem.
Running a Takahashi FSQ106mm on it. Cold weather doesn’t seem to faze the mount one bit. 😀

Tim

--
Roland Christen
Astro-Physics


Re: Mach2 - Imaging in frigid night

Roland Christen
 

I did the final assembly on all the Mach2 mounts, and your mount was ordered with Low Temp encoders, and that's what it has in it. You ordered from your dealer who probably kept the paperwork that you should have received. I have the order list and it shows the serial numbers of the encoder and ring set as being low temp. You would have to disassemble the encoder enclosure to see the readhead, something I would advise not to do since everything is calibrated.

Rolando



-----Original Message-----
From: Terry Martin <terry@...>
To: main@ap-gto.groups.io
Sent: Fri, Jan 22, 2021 7:59 pm
Subject: Re: [ap-gto] Mach2 - Imaging in frigid night

Hi Rolando,

How can I tell whether my Mach2 has Extended Temperature Encoders in it or not?  I just received my Mach2 a couple days ago and there was no paper work with it.  Supposedly, I ordered the mount from a vendor with the Extended Temp encoders, but I don't know what I got.

Terry

--
Roland Christen
Astro-Physics


Re: Mach2 - Imaging in frigid night

Terry Martin
 

Hi Rolando,

How can I tell whether my Mach2 has Extended Temperature Encoders in it or not?  I just received my Mach2 a couple days ago and there was no paper work with it.  Supposedly, I ordered the mount from a vendor with the Extended Temp encoders, but I don't know what I got.

Terry


Re: Mach2 - Imaging in frigid night

Tim Morrill
 

Hey Roland.
I’ve got my Mach2 up and running tonight as well.
Its currently 14° Here in central Iowa. So not too far from you. Going to be imaging all night. So far it’s doing great.
getting 10 minutes unguided exposures with no problem.
Running a Takahashi FSQ106mm on it. Cold weather doesn’t seem to faze the mount one bit. 😀

Tim


Re: Mach2 - Imaging in frigid night

Roland Christen
 

We're somewhat north of you, plus you probably have slightly more heat domes in your neighborhood.
11 is balmy Stuck out tongue closed eyes

Rolando


-----Original Message-----
From: Cheng-Yang Tan via groups.io <cytan299@...>
To: main@ap-gto.groups.io; cytan299@... <cytan299@...>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Sent: Fri, Jan 22, 2021 7:55 pm
Subject: Re: [ap-gto] Mach2 - Imaging in frigid night

Hi Rolando

   Just south of you in Naperville. Temp is now 11 deg according to my weather station.

cytan


Sent from Yahoo Mail for iPad

On Friday, January 22, 2021, 7:50 PM, Roland Christen via groups.io <chris1011@...> wrote:
Hi Cytan,

Where are you located, and how cold is it there? We have a nice Canadian high pressure above now with arctic air coming right out of the north. Supposed to go down to -5 to -15 F tonight according to Clear Sky Clock.

First 20 minute image downloaded now, and of course there's a nice satellite trail right thru the middle of the Rosette. We'll see how many I can bag tonight.

Rolando


-----Original Message-----
From: Cheng-Yang Tan via groups.io <cytan299@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Sent: Fri, Jan 22, 2021 7:44 pm
Subject: Re: [ap-gto] Mach2 - Imaging in frigid night

Hi Rolando,
   You're a tough guy! I was outside and decided that discretion was the better part of valor and chickened out :)

cytan

On Friday, January 22, 2021, 07:42:18 PM CST, Roland Christen via groups.io <chris1011@...> wrote:


Hi Astronuts,

First clear night in a month, fired up the 160 EDF on the Mach2 mount at the AP observatory. There's also a 155 EDF riding piggyback, but not being used tonight. It's 5 deg F (-15C) right now with very clear air. The temperature is dropping like an anvil off a cliff. Seeing is, well see below (poor - 2 out of 5). The mount is tracking with MaximDL, multi-star tracking mode and averaging 0.15 rms arc sec. This is the first time in a year that I've operated this mount in such cold conditions. My fingers are freezing after only 5 minutes of operating out there. But for clear skies, it's worth it.

Shooting the Rosette in Ha with the Moon straight up.

Rolando


Current forecast for Astro-Physics Clear Sky Chart

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics


Re: Mach2 - Imaging in frigid night

Cheng-Yang Tan
 

Hi Rolando

   Just south of you in Naperville. Temp is now 11 deg according to my weather station.

On Friday, January 22, 2021, 7:50 PM, Roland Christen via groups.io <chris1011@...> wrote:

Hi Cytan,

Where are you located, and how cold is it there? We have a nice Canadian high pressure above now with arctic air coming right out of the north. Supposed to go down to -5 to -15 F tonight according to Clear Sky Clock.

First 20 minute image downloaded now, and of course there's a nice satellite trail right thru the middle of the Rosette. We'll see how many I can bag tonight.

Rolando


-----Original Message-----
From: Cheng-Yang Tan via groups.io <cytan299@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Sent: Fri, Jan 22, 2021 7:44 pm
Subject: Re: [ap-gto] Mach2 - Imaging in frigid night

Hi Rolando,
   You're a tough guy! I was outside and decided that discretion was the better part of valor and chickened out :)

cytan

On Friday, January 22, 2021, 07:42:18 PM CST, Roland Christen via groups.io <chris1011@...> wrote:


Hi Astronuts,

First clear night in a month, fired up the 160 EDF on the Mach2 mount at the AP observatory. There's also a 155 EDF riding piggyback, but not being used tonight. It's 5 deg F (-15C) right now with very clear air. The temperature is dropping like an anvil off a cliff. Seeing is, well see below (poor - 2 out of 5). The mount is tracking with MaximDL, multi-star tracking mode and averaging 0.15 rms arc sec. This is the first time in a year that I've operated this mount in such cold conditions. My fingers are freezing after only 5 minutes of operating out there. But for clear skies, it's worth it.

Shooting the Rosette in Ha with the Moon straight up.

Rolando


Current forecast for Astro-Physics Clear Sky Chart

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics


Re: Mach2 - Imaging in frigid night

Roland Christen
 

Hi Cytan,

Where are you located, and how cold is it there? We have a nice Canadian high pressure above now with arctic air coming right out of the north. Supposed to go down to -5 to -15 F tonight according to Clear Sky Clock.

First 20 minute image downloaded now, and of course there's a nice satellite trail right thru the middle of the Rosette. We'll see how many I can bag tonight.

Rolando


-----Original Message-----
From: Cheng-Yang Tan via groups.io <cytan299@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Sent: Fri, Jan 22, 2021 7:44 pm
Subject: Re: [ap-gto] Mach2 - Imaging in frigid night

Hi Rolando,
   You're a tough guy! I was outside and decided that discretion was the better part of valor and chickened out :)

cytan

On Friday, January 22, 2021, 07:42:18 PM CST, Roland Christen via groups.io <chris1011@...> wrote:


Hi Astronuts,

First clear night in a month, fired up the 160 EDF on the Mach2 mount at the AP observatory. There's also a 155 EDF riding piggyback, but not being used tonight. It's 5 deg F (-15C) right now with very clear air. The temperature is dropping like an anvil off a cliff. Seeing is, well see below (poor - 2 out of 5). The mount is tracking with MaximDL, multi-star tracking mode and averaging 0.15 rms arc sec. This is the first time in a year that I've operated this mount in such cold conditions. My fingers are freezing after only 5 minutes of operating out there. But for clear skies, it's worth it.

Shooting the Rosette in Ha with the Moon straight up.

Rolando


Current forecast for Astro-Physics Clear Sky Chart

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics


Re: Mach2 - Imaging in frigid night

Cheng-Yang Tan
 

Hi Rolando,
   You're a tough guy! I was outside and decided that discretion was the better part of valor and chickened out :)

cytan

On Friday, January 22, 2021, 07:42:18 PM CST, Roland Christen via groups.io <chris1011@...> wrote:


Hi Astronuts,

First clear night in a month, fired up the 160 EDF on the Mach2 mount at the AP observatory. There's also a 155 EDF riding piggyback, but not being used tonight. It's 5 deg F (-15C) right now with very clear air. The temperature is dropping like an anvil off a cliff. Seeing is, well see below (poor - 2 out of 5). The mount is tracking with MaximDL, multi-star tracking mode and averaging 0.15 rms arc sec. This is the first time in a year that I've operated this mount in such cold conditions. My fingers are freezing after only 5 minutes of operating out there. But for clear skies, it's worth it.

Shooting the Rosette in Ha with the Moon straight up.

Rolando


Current forecast for Astro-Physics Clear Sky Chart

--
Roland Christen
Astro-Physics


Mach2 - Imaging in frigid night

Roland Christen
 

Hi Astronuts,

First clear night in a month, fired up the 160 EDF on the Mach2 mount at the AP observatory. There's also a 155 EDF riding piggyback, but not being used tonight. It's 5 deg F (-15C) right now with very clear air. The temperature is dropping like an anvil off a cliff. Seeing is, well see below (poor - 2 out of 5). The mount is tracking with MaximDL, multi-star tracking mode and averaging 0.15 rms arc sec. This is the first time in a year that I've operated this mount in such cold conditions. My fingers are freezing after only 5 minutes of operating out there. But for clear skies, it's worth it.

Shooting the Rosette in Ha with the Moon straight up.

Rolando


Current forecast for Astro-Physics Clear Sky Chart

--
Roland Christen
Astro-Physics


Re: Mach2 tracking below custom horizon

Ray Gralak
 

Hi Luca,

Thank you for the logs. This was an unusual case in that there happened to be a race condition between the horizon limit being reached and the update of the RA/Dec tracking rates because the pointing model was active. I have created a new APCC Pro release, v1.8.8.17, which should prevent this from happening in the future. This issue only affects APCC Pro.

In case "check for update" is not working in APCC Pro, here is the direct download link:

http://www.apastrosoftware.com/apcc_download/APCC_Pro_Setup_1.8.8.17.exe

-Ray Gralak
Author of PEMPro
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Luca Marinelli
Sent: Friday, January 22, 2021 3:19 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 tracking below custom horizon

[Edited Message Follows]

So I went through the SGP log and the application was sitting idly not sending any commands to AP ASCOM
driver after the end of the APPM run. As I said, I was not running a sequence, only using SGP for camera control
and plate solving.

Ray, I copied the APPC and AP ASCOM logs in my Dropbox if you want to take a look, but I am quite certain this
had nothing to do with an errant request from a client.

APPC/AP ASCOM logs: https://www.dropbox.com/s/bh3l6k5sut40hfi/ApccZip-Luca_Marinelli-2021-01-22-
061412.zip?dl=0
SGP log: https://www.dropbox.com/s/o3gdtid7curwcys/sg_logfile_20210120175716.log?dl=0

The APPM run ended at 7:47pm 1/20/2021 near the Western horizon.

Thanks,

Luca


Re: Mach2 tracking below custom horizon

Luca Marinelli
 
Edited

So I went through the SGP log and the application was sitting idly not sending any commands to AP ASCOM driver after the end of the APPM run. As I said, I was not running a sequence, only using SGP for camera control and plate solving.

Ray, I copied the APPC and AP ASCOM logs in my Dropbox if you want to take a look, but I am quite certain this had nothing to do with an errant request from a client.

APPC/AP ASCOM logs: https://www.dropbox.com/s/bh3l6k5sut40hfi/ApccZip-Luca_Marinelli-2021-01-22-061412.zip?dl=0
SGP log: https://www.dropbox.com/s/o3gdtid7curwcys/sg_logfile_20210120175716.log?dl=0

The APPM run ended at 7:47pm 1/20/2021 near the Western horizon.

Thanks,

Luca


Re: NB Imaging With Mach2

lmbrabec@...
 

Thanks Marcelo!  With the TEC140FL I would either be imaging at 980 mm or I also have the AP QUADTCC to image at around 700 mm.  I'm curious what camera your using?  Good point about satellites and other stuff as that sure has become more of an issue but so far it seems like software can deal with most of it. Thanks much for your experiences!  Scott


Re: NB Imaging With Mach2

Marcelo Figueroa
 

I don't know at that focal length, but shorter distances (Esprit 100) my Mach2 is quite capable of 10 or 15 minute exposures without guiding. I haven't tried longer exposures, but I think for times longer than 30 minutes, some sort of guiding is probably a good idea.
 
Personally I prefer shorter exposures, about 5 minutes, because if a frame is lost due to a satellite or other inconvenience I also lose a good part of the night. In this case, about 5 minutes, going unguided works great.
 

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