Re: Mach2GTO 6" Eagle Adjustable Folding Pier

steve.winston@...

For my TEC 140 + imaging train (a pretty long imaging setup), I had to add the 8" extension to prevent the camera colliding with the pier legs, so whether you need the extension really depends on your set-up.

Re: APPM Models

Lee Dodge

Thanks for the reply Dale.  Using data from https://www.mide.com/air-pressure-at-altitude-calculator, I come up with a correlation at my altitude of P(mbar) = BARO (inHg) x 3.5599 x (T(C) +273.15)^0.3409.  I am just trying to verify that weather stations that report barometric pressure and temperature are being corrected for altitude and temperature for use in APPM model inputs, and that my approach is reasonable.

Re: APPM Models

Dale Ghent

On Nov 29, 2020, at 12:26, Lee Dodge <ldodge12@gmail.com> wrote:

I am at a loss to understand the details of the pressure required for the APPM model, and how some folks are getting that from the local weather report. The APPM model asks for "pressure" in mbar. My local weather station reports barometric pressure in inches of mercury (Hg). So, for today, the barometric pressure 30.52 in. Hg., and using a conversion factor of 33.8639 mbar/in. Hg, I would get an absolute pressure of 1033.5 mbar, which sounds reasonable for a nice clear day. However, my observatory is at 8565 ft. above sea level, or 2611 m. Using this barometric pressure at my altitude would be nonsense, as I compute the absolute pressure at my altitude and a temperature of -11 C (today's temp.) to be 725.3 mbar. The difference between the barometric pressure and the actual absolute pressure at my location is that the barometric pressure is always converted to some sea level equivalent, and regardless of how high you go, the barometric pressure is always around 1013 mbar. If the model is looking for barometric pressure, then it must be labeled barometric pressure rather than pressure, and if it is really looking for pressure, then how are folks getting that from the local weather report. Which pressure is it looking for?
I think it's pretty obvious and well-understood that the local air pressure is what goes there. How one gets that number is up to their discretion and judgement. For some, the reports given by a weather service are sufficient as those are collected from both official and private weather stations and from local airport weather equipment can be quite accurate enough. Others use local devices. I have a small Arduino-based project the size of a stick of gum that includes a BMP80 air pressure chip and an ASCOM driver that can read it. Yet others have their own weather stations and enter the data either manually or via ASCOM driver, if their weather station has an ASCOM driver that can talk to it. If you find that you need to take a local reading and modify it for your altitude, and it works for you, then it works for you.

mbar is equivalent to the SI unit for air pressure, hectopascals (hPa). The ASCOM ObservingConditions driver specification says that all its various units are SI units, and the astronomy world in general deals in SI units for all measurements. I'm not sure why there needs to be any consternation here.

Re: APPM Models

Lee Dodge

I am at a loss to understand the details of the pressure required for the APPM model, and how some folks are getting that from the local weather report.  The APPM model asks for "pressure" in mbar.  My local weather station reports barometric pressure in inches of mercury (Hg).  So, for today, the barometric pressure 30.52 in. Hg., and using a conversion factor of 33.8639 mbar/in. Hg, I would get an absolute pressure of 1033.5 mbar, which sounds reasonable for a nice clear day.  However, my observatory is at 8565 ft. above sea level, or 2611 m.  Using this barometric pressure at my altitude would be nonsense, as I compute the absolute pressure at my altitude and a temperature of -11 C (today's temp.) to be 725.3 mbar.  The difference between the barometric pressure and the actual absolute pressure at my location is that the barometric pressure is always converted to some sea level equivalent, and regardless of how high you go, the barometric pressure is always around 1013 mbar.  If the model is looking for barometric pressure, then it must be labeled barometric pressure rather than pressure, and if it is really looking for pressure, then how are folks getting that from the local weather report.  Which pressure is it looking for?

Lee

Re: Mach2GTO 6" Eagle Adjustable Folding Pier

Roland Christen

If you use it for imaging, then no extension is needed. If you want to use it visually then you will want to raise it up with an extension piece.

Rolando

-----Original Message-----
From: Mundhir <Mundhir@...>
To: main@ap-gto.groups.io
Sent: Sun, Nov 29, 2020 5:55 am
Subject: [ap-gto] Mach2GTO 6" Eagle Adjustable Folding Pier #Mach2GTO

Hello Everyone,

Anyone using the 6" Eagle adjustable folding pier? What scope do you have? and whether you have a  4" or 8" extension?

I'm expecting my Mach2GTO to arrive soon next month. and I need to order the extension part if required.  I currently own C11 and Televue NP101is Telescopes. I also plan to purchase C14 Edge HD in near future.

Thanks & Clear Skies,
Mundhir

--
Roland Christen
Astro-Physics

Re: Mach2GTO 6" Eagle Adjustable Folding Pier

Terri Zittritsch

I am using the Eagle pier, very happy with it.   I use an 8" extension as well.      I have numerous scopes I use with it, the heaviest being either a TEC140 or Edge 11" scope, not sure which is heavier.   I suspect the Edge.    I originally purchased an Avalon T-Pod, but found that a normal tripod with fixed leg spread doesn't allow the same kind of dynamics and stability that the Eagle provides.    The Eagle, with its adjustable leg spread, allows for a pier-like functionality when used with an extension or not.   I use a maximum spread before leveling and an 8" extension to keep height.   I find it very stable no matter the scope size I've used.   I've also done a dual setup with TEC140 plus Stowaway, and it balances nicely and very stable.     What I found with the T-Pod, with its fixed leg spread, is that with an extension to get good clearance I had to shorten the legs else the tripod was far too high for me.   When the legs are shorter, the footprint is proportionally smaller and less stable.    To get the stability on a fixed leg spread tripod I had to extend the legs to the level where it isn't practical to use an extension (I'm tall but  not that tall).   I could not find a level that I was happy at with the T-POD.   Now I use the TPOD with a 6" discmount for visual.    For A-P, you can't beat the Eagle.    The other thing I found much easier with the Eagle is leveling.    By loosening one leg at a time and pushing against that side of the pier, I could easily provide fine adjustment to the level and the single knob tightens easily and solidly.

Mach2GTO 6" Eagle Adjustable Folding Pier

Mundhir

Hello Everyone,

Anyone using the 6" Eagle adjustable folding pier? What scope do you have? and whether you have a  4" or 8" extension?

I'm expecting my Mach2GTO to arrive soon next month. and I need to order the extension part if required.  I currently own C11 and Televue NP101is Telescopes. I also plan to purchase C14 Edge HD in near future.

Thanks & Clear Skies,
Mundhir

Re: Storage box for the Mach2 mount

Andrea Lucchetti

I use a Maxcase 540.
It is a Peli like case produced in Italy, very high quality and right price.
I have changed the original foam with the same material used by AP for shipping, very easy to cut.
I keep the dovetail and bar separated to limit the weight.
Andrea
Don’t have a good picture for now, sorry

Re: APPM Models

KHursh

That is an interesting piece of kit. I would need to think a bit about where I would put it.

On the other hand, I was successful in getting my run going with SGP as I have a license for that. I had trouble at first with my plate solves because I (stupidly) hadn't done an initial recal in SGP prior to running the model. I stared blankly at the screen of "failed" for two days before it dawned on me.

Re: APPM Models

Ray Gralak

Hi Dale,

I had an old license for TSX so I installed it to get APPM access
to a plate solver. After some problems with ActiveX errors being burped up by APPM when trying to solve an image
taken through my ASCOM-connected QHY600, it turned out I needed to run TSX as admin first so that its AcitveX
components could get registered, then APPM was able to talk to it. I expected it to just use TXS's API server but I
guess that isn't the case here.
The reason for using ActiveX is that it allows the same interface code in APPM to be used for CCDSoft V5 and TSX Camera Add-On. :-)

As for why TSX does not register its ActiveX components when SkyX is installed, you will have to ask Software Bisque about that.

-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 Dale Ghent
Sent: Saturday, November 28, 2020 7:46 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] APPM Models

On Nov 28, 2020, at 20:30, KHursh via groups.io <khursh=yahoo.com@groups.io> wrote:

Thanks Marcelo,

I had the API key from years ago, but I set it wrong in APCC. I had to choose ASCOM.OCH.ObservingConditions
as the driver so I could select my PowerBox for temp and humidity, but use OpenWeather for the Pressure.
OpenWeather had bad data for the temperature. It is about 14C here. OWM said it was 26!! Now it is all set!
Teamwork!

For what it's worth, Evan@Pegasus just announced a more comprehensive sensor that plugs into the existing
PowerBox ecosystem:

https://pegasusastro.com/uranus-meteo-sensor/

Available Q1/2021. Pretty much everything you need for local info.

I upgrade to APPC Pro this week and ran my first model tonight using OCH+OWM for air pressure and temperature
and humidity from my UPBv2. It went swimmingly. I had an old license for TSX so I installed it to get APPM access
to a plate solver. After some problems with ActiveX errors being burped up by APPM when trying to solve an image
taken through my ASCOM-connected QHY600, it turned out I needed to run TSX as admin first so that its AcitveX
components could get registered, then APPM was able to talk to it. I expected it to just use TXS's API server but I
guess that isn't the case here.

/dale

Re: APPM Models

Dale Ghent

On Nov 28, 2020, at 20:30, KHursh via groups.io <khursh=yahoo.com@groups.io> wrote:

Thanks Marcelo,

I had the API key from years ago, but I set it wrong in APCC. I had to choose ASCOM.OCH.ObservingConditions as the driver so I could select my PowerBox for temp and humidity, but use OpenWeather for the Pressure. OpenWeather had bad data for the temperature. It is about 14C here. OWM said it was 26!! Now it is all set! Teamwork!
For what it's worth, Evan@Pegasus just announced a more comprehensive sensor that plugs into the existing PowerBox ecosystem:

https://pegasusastro.com/uranus-meteo-sensor/

Available Q1/2021. Pretty much everything you need for local info.

I upgrade to APPC Pro this week and ran my first model tonight using OCH+OWM for air pressure and temperature and humidity from my UPBv2. It went swimmingly. I had an old license for TSX so I installed it to get APPM access to a plate solver. After some problems with ActiveX errors being burped up by APPM when trying to solve an image taken through my ASCOM-connected QHY600, it turned out I needed to run TSX as admin first so that its AcitveX components could get registered, then APPM was able to talk to it. I expected it to just use TXS's API server but I guess that isn't the case here.

/dale

Re: APPM Models

KHursh

Thanks Marcelo,

I had the API key from years ago, but I set it wrong in APCC. I had to choose ASCOM.OCH.ObservingConditions as the driver so I could select my PowerBox for temp and humidity, but use OpenWeather for the Pressure. OpenWeather had bad data for the temperature. It is about 14C here. OWM said it was 26!! Now it is all set! Teamwork!

Kevin

Re: Storage box for the Mach2 mount

Wes Atchison

HI Harley,

I use the Ridgid tool box set to store  my AP900.  Really works great, nice sturdy rugged box set.

FYI, Home Depot is running a sale of the 3 piece set till Christmas.

Wes
WA5TKU

Re: APPM Models

Marcelo Figueroa

Even though I have the Pegasus Powerbox Advance, I haven't installed it yet (waiting for the appropriate cables to arrive) so the details are missing, but look at the image 1 of the link, the pressure is selected in the Obeserving Condition HUB Configuration. Also note that it may take several hours for your OpenWeatherMap account to be activated.

At the moment this is what I do:

To get all the data via OpenWeatherMap (no device required, but internet connection):

1) In APCC Settings > Environmental Settings
2) Source > ASCOMObservingConditions
3) Select Driver > OpenWeatherMap.ObservingConditions
4) Properties :

- API Key: Enter the API Key number that was sent to you
- API URL: https://api.openweathermap.org/data/2.5/weather

5) Select Site: Enter your city name and select it from the list (be sure to select the correct city)
- Ok

Re: Storage box for the Mach2 mount

Jim Hawn

tony,
Thanks for posting the helpful video, especially the detailed Rubbermaid product information to facilitate ordering them.  Out of curiosity, what do you recommend for storing the GTOCP5 unit and cables?  How about the counterweight bar and the counterweights themselves?  Lastly, do you have a recommended storage solution for the RAPAS?  Thanks.
-  Jim

Re: APPM Models

KHursh

Thanks Marcelo,

I have OpenWeatherMap API key stored in my ASCOM settings, but the pressure still appears editable in APCC pro, so I do. Not sure if I am missing something somewhere.

Storage box for the Mach2 mount

Harley Davidson

I am using a Ridgid tool box to protect my Mach2 mount.

tony

Re: APPM Models

Marcelo Figueroa

You don't need to enter the pressure manually, follow these steps and you can get it (along with temperature and humidity as well) from the internet:

https://ap-gto.groups.io/g/main/message/73588?p=,,,20,0,0,0::Created,,openweathermap,20,2,0,77256891

Re: Do NOT use ASCOM Platform v. 6.5 with APCC Pro

Michael 'Mikey' Mangieri

I have been using v6.5SP1 (RC1) with no issues thus far although I am still using a 197 point APPM model from a couple of weeks ago which was created with 6.4 installed.

On Nov 28, 2020, at 12:45 PM, Ray Gralak <groups3@gralak.com> wrote:

v6.5SP1 (RC1)

Re: APPM Models

KHursh

PS. I am using a Pegasus Astro Powerbox which has real-time temp and humidity monitoring. I enter the atmospheric pressure manually.

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