Re: Gemini 2 Unable to Connect Telescope via Direct Ethernet

#66906

PS.
I couldn't read your network adapter names (you must be sure the adapter properties are for the right Network Interface.
(just unplug the cable from the pc and you will see the proper network interface show 'disconnected' to be sure it was the right one...)

Re: Gemini 2 Unable to Connect Telescope via Direct Ethernet

#66905

Motofix,
Please change your PC's Preferred DNS to 192.168.1.100 as well and it will work.
Open your PC's browser to 192.168.1.110 and you should get the Gemini_2's login prompt.
(Also disable (uncheck) the IP6 option on your PC, It doesn't matter for the Gemini, but not a bad idea, if you don't need it)
Please let us know...

?

Re: Gemini 2 Unable to Connect Telescope via Direct Ethernet

#66904

On Tue, Jun 23, 2020 at 07:54 PM, Brian Valente wrote:

it won't work until you connect the computer

Brian:
Not sure what you mean.
As shown below, the HC and Computer connections are made and are not removed during or after set up:
HC with coil cord - HC Port
Yellow Ethernet cable - Gemini 2 Ethernet Port to Computer Ethernet Port
Serial/GPS cable to GPS receiver
Photos below for reference including the Computer Network Connections panel.
I will replace the Ethernet cable and retest tomorrow.
Thanks?
Ron M

??

Re: Chicken Nebula

#66903

开云体育

Sonny,

I should ask you the same thing :)

Paul

Show quoted text

On 25 Jun 2020, at 1:34:10 am, Sonny Edmonds <sonnyedmonds@...> wrote:

Beautiful!
Nice to see what you can get down under.

Since you are already upside down, do you find your images are right side up in your refractors?
--
SonnyE

(I suggest viewed in full screen)

Re: PEC Training - PEMPro or Use PHD2?

#66902

Hi Jim

Yes PEMPro

>>>With the Gemini-2 HC you can PEC train the mount.?

as I mentioned before, you really don't want to go this route for imaging.

Show quoted text

On Tue, Jun 23, 2020 at 10:37 PM Jim Waters <jimwaters@...> wrote:

My Bad - I meant PEMPro.? I corrected the text.? With the Gemini-2 HC you can PEC train the mount.? I would then use PHD2 "Predictive PEC" to Further refine the PEC.

FYI

PHD2 Predictive PEC Guide Algorithm (PPEC)
?Overview

?The PPEC algorithm is different from the others in PHD2 because of its modeling and predictive capabilities.??The algorithm analyzes the tracking performance of the mount in real-time and once that analysis is complete, it will compute guiding corrections even before a repetitive error is actually seen.??Issuing proactive guiding corrections reduces the time delay inherent in traditional guiding and can significantly improve performance.??With the other algorithms, which are completely reactive, guide corrections are issued only after the error has been seen on the camera sensor.??

?Once guiding has begun, the algorithm analyzes the performance of the mount and looks for tracking errors that are repetitive and thus, predictable.??The algorithm employs a sophisticated Gaussian process model developed by a research team at the Max Planck Institute in?Germany.??The mathematical details can be found in a paper referenced here:

?

--

Brian?

Brian Valente

portfolio

Re: Chicken Nebula

Sonny Edmonds

#66901

Beautiful!
Nice to see what you can get down under.

Since you are already upside down, do you find your images are right side up in your refractors?
--
SonnyE

(I suggest viewed in full screen)

Re: Gemini 2 Unable to Connect Telescope via Direct Ethernet

Sonny Edmonds

#66900

I think I'm giving up on this Ethernet stuff.
1. My mount computer does not have Ethernet capabilities. No port, and my USB/Ethernet adapter doesn't seem to let the computer even see the Gemini 2.
2. My USB, Powered HUB, and a single USB cable works flawlessly, for everything. And the Gemini 2 Ethernet does not readily allow for my cameras and focuser to be added into the Ethernet, even if it did magically start working.
3. My mount computer readily WiFi's to my Main Computer, where I can use Tight Vnc to show the Laptops entire display and all functions.
4. I also have a wireless router in our RV now. So I believe I could readily inter connect there, wirelessly, with an additional tablet or Laptop (work station) in the RV for field use. Quite possibly with a Smart TV and a wireless keyboard.

I found the Ethernet port vital for updating or reinstalling the firmware for the Gemini. So it has merit for that.
But until and unless the Ethernet port can be a truly single port connection, handling everything between the mount, and the indoor computer, it is only valuable to me as a maintenance port.

So for that reason, I'm out. (to quote Shark Tank).

--
SonnyE

(I suggest viewed in full screen)

Re: Chicken Nebula

#66899

Thanks Michael.?

lol. That's true Arun but we feel the same about Andromeda.
I did M8 in an infrared blend from QLD in 2017. Bit unusual but interesting:?

Re: RMS vs photos

#66898

开云体育

Thanks! Adds in quadrature, yes, I tend to forget that.

RMS is an interesting and useful number, but as you have shown, it really helps to understand it more in depth.

Best,

Magnus

Den 2020-06-24 kl. 03:45, skrev Arun Hegde:

Show quoted text

Magnus -?

Noise adds in quadrature. The reported RMS numbers are standard deviations, comprised of different effects (eg. noise, mount mechanics) each with their own individual RMS values or standard deviations. If the effects are independent (eg. seeing and mount mechanics) then the overall effect can be approximated by squaring the standard deviations of the individual effects and adding them, then taking the square root. That is what I've done here.

I think also that it is important to differentiate between high frequency noise - which is things like vibrations and seeing - and the longer period oscillation from worm movement, which is typically what we talk about when we discuss periodic error correctable by PEC or PHD2. Bruce Waddington covers this very nicely in his video that was shared here recently. Things like vibrations and high frequency oscillations from seeing are not corrected by guiding software. I like to think of the high frequency star motion RMS as the absolute best guiding you can get on any given night. It is basically everything that PHD2 cannot correct!

Arun

Re: PEC Training - PEMPro or Use PHD2?

Jim Waters

#66897

My Bad - I meant PEMPro.? I corrected the text.? With the Gemini-2 HC you can PEC train the mount.? I would then use PHD2 "Predictive PEC" to Further refine the PEC.

FYI

PHD2 Predictive PEC Guide Algorithm (PPEC)

?Overview

?The PPEC algorithm is different from the others in PHD2 because of its modeling and predictive capabilities.??The algorithm analyzes the tracking performance of the mount in real-time and once that analysis is complete, it will compute guiding corrections even before a repetitive error is actually seen.??Issuing proactive guiding corrections reduces the time delay inherent in traditional guiding and can significantly improve performance.??With the other algorithms, which are completely reactive, guide corrections are issued only after the error has been seen on the camera sensor.??

?Once guiding has begun, the algorithm analyzes the performance of the mount and looks for tracking errors that are repetitive and thus, predictable.??The algorithm employs a sophisticated Gaussian process model developed by a research team at the Max Planck Institute in?Germany.??The mathematical details can be found in a paper referenced here:

?

Re: PEC Training - PEMPro or Use PHD2?

#66896
Edited

Hi Jim

?

if you are imaging, PEMPro is pretty?much the only game.

?

PECPro can't program the mount, and i'm not sure how you would use PHD2, but it would be too coarse and noisy. (PS - I assume you mean PECPrep?)

?

PEMPro is actually quite easy to use once you understand it, and produces excellent results.?

?

Also i would not use bright stars, they can easily oversaturate and confuse the?centroid calculation. Just aim your scope near the intersection?of the celestial equator and meridian and the imaging program will pick a suitable star.?

On Tue, Jun 23, 2020 at 9:58 PM Jim Waters <jimwaters@...> wrote:

Is it worth the extra effort to train my Losmandy GM811G using PECPro or should I just use PHD2?? I will be using a star near the celestial equator like Lorenzin Zeta AQR.? PEMPro is somewhat complicated to use.? Afterwards I plan to use PHD2 Predictive PEC.

?

I will be using my 630mm imaging scope and QHY5L-II auto-guider for training.

?

Object Name: Lorenzin Zeta AQR

RA (2000.0): 22h 28m 50.1s

Dec (2000.0): -00° 01' 12"

?

?

?

--

Brian?

?

Brian Valente

portfolio

PEC Training - PEMPro or Use PHD2?

Jim Waters

#66895
Edited

Is it worth the extra effort to train my Losmandy GM811G using PEMPro or should I just use PHD2?? I will be using a star near the celestial equator like Lorenzin Zeta AQR.? PEMPro is somewhat complicated to use.? Afterwards I plan to use PHD2 Predictive PEC.

?

I will be using my 630mm imaging scope and QHY5L-II auto-guider for training.

?

Object Name: Lorenzin Zeta AQR

RA (2000.0): 22h 28m 50.1s

Dec (2000.0): -00° 01' 12"

Re: Gemini 2 Unable to Connect Telescope via Direct Ethernet

#66894

Hi Ron

>>> The Gemini Web Server Software version of the Hand Controller did not work.?

it won't work until you connect the computer

please do send pics of the hand controller. i suspect that setup is where there may be an issue

Show quoted text

On Tue, Jun 23, 2020 at 7:44 PM Motorfix via <rm2642=[email protected]> wrote:

Brian:?
Thanks for the quick reply.
I will swap out the old cable for a new, 20'? cat 6 cable and take photos of the hand controller ip addresses.
The Losmandy/GPS receiver is connected to the Gemini 2 Serial/GPS port and works great.
The laptop is a new Dell (W10). The Gemini Web Server Software version of the Hand Controller did not work.?
The desktop PC (W10) is giving me the "Gemini will not connect message". So actually, telescope control is a problem with both computers.
More detail and photos to follow.
Thanks much,
Ron M

--

Brian?

Brian Valente

portfolio

Re: Gemini 2 Unable to Connect Telescope via Direct Ethernet

#66893

Brian:?
Thanks for the quick reply.
I will swap out the old cable for a new, 20'? cat 6 cable and take photos of the hand controller ip addresses.
The Losmandy/GPS receiver is connected to the Gemini 2 Serial/GPS port and works great.
The laptop is a new Dell (W10). The Gemini Web Server Software version of the Hand Controller did not work.?
The desktop PC (W10) is giving me the "Gemini will not connect message". So actually, telescope control is a problem with both computers.
More detail and photos to follow.
Thanks much,
Ron M

Re: Chicken Nebula

Arun Hegde

#66892

So not only do you have these DSOs optimally placed but also 35 hours of clear sky time to image each of them. Hardly seems fair. Beautiful image!

Re: RMS vs photos

Arun Hegde

#66891

Magnus -?

Noise adds in quadrature. The reported RMS numbers are standard deviations, comprised of different effects (eg. noise, mount mechanics) each with their own individual RMS values or standard deviations. If the effects are independent (eg. seeing and mount mechanics) then the overall effect can be approximated by squaring the standard deviations of the individual effects and adding them, then taking the square root. That is what I've done here.

I think also that it is important to differentiate between high frequency noise - which is things like vibrations and seeing - and the longer period oscillation from worm movement, which is typically what we talk about when we discuss periodic error correctable by PEC or PHD2. Bruce Waddington covers this very nicely in his video that was shared here recently. Things like vibrations and high frequency oscillations from seeing are not corrected by guiding software. I like to think of the high frequency star motion RMS as the absolute best guiding you can get on any given night. It is basically everything that PHD2 cannot correct!

Arun

Re: Chicken Nebula

#66890

Super.

A beautiful ad for your equipment set!

Michael

Show quoted text

On Tue, Jun 23, 2020, 2:59 PM marc@... <marc@...> wrote:

Here's a 35h total integration pic in HST palette that I shot with an FSQ106N and a QHY9 mono while tinkering with my G11 and testing from my backyard. This in the Carina area just right of the southern cross and pretty high in the sky at this time of the year so good to image right now.

The mount is still a work in progress but you still can have fun while testing right?

Chicken Nebula

#66889

Here's a 35h total integration pic in HST palette that I shot with an FSQ106N and a QHY9 mono while tinkering with my G11 and testing from my backyard. This in the Carina area just right of the southern cross and pretty high in the sky at this time of the year so good to image right now.

The mount is still a work in progress but you still can have fun while testing right?

Re: Gemini 2 Unable to Connect Telescope via Direct Ethernet

#66888

Where is the IP address info for the gemini hand controller?

can you snap pics of that

Show quoted text

On Tue, Jun 23, 2020 at 12:41 PM Motorfix via <rm2642=[email protected]> wrote:

Hello Group:

Based on Brians Connecting the Losmandy Gemini via Direct Ethernet, all IP address settings have been incorporated into the HC, changing ethernet adapter options, telescope configuration with the Gemini Web Server, etc.?

After completing all settings, the Gemini Telescope connection worked the first time, but no connection can be made there after.? ?

Would appreciate assistance in resolving this issue. Here's some screen shots. Additional supporting photos can be added if needed.?
Thanks, Ron M

--

Brian?

Brian Valente

portfolio

Re: Gemini 2 Unable to Connect Telescope via Direct Ethernet

#66887

How recent is your laptop?

gemini is powered on, right? (i have to check :) )

I have to look at this some more but two things come to mind to check:

1. can you?try a different ethernet cable?

2. for the computer settings, can you try using the IP address of the Gemini for the default gateway

Show quoted text

On Tue, Jun 23, 2020 at 1:36 PM Motorfix via <rm2642=[email protected]> wrote:

can you send pics of your computer ip settings as well?
Thanks Brian:
Is this what you mean?
Ron M

--

Brian?

Brian Valente

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