AstroTortilla - previous sub for 2nd session plan?

[Russe]

Hi guys,

I've used AstroTortilla for the first time last night. Very nifty!

Now I read somewhere that you can use a previous sub to get to the exact same position again in your next session. How do you do that?

Thanks!

[Russe]

Ah - found it - "go to image" ...

But what do you do about rotation?

[Russe]

And - what to do if the pic is on the wrong side of the ecliptic? Is there a button for reverse slews in AstroTortilla like in EQMOD? Or do I have to then tick the box in EQMOD and reslew??

[Russe]

Or do I need to combine it with "reslew to target" after ticking the flipped GOTO switch in EQMOD?

[Russe]

Ah - I think I figured it out - yes, EQMOD needs to be clicked and the reslew will be the other way around...

[Astrosurf]

This is hilarious! But actually very informative.

Alexxx

[Russe]

Lol - me whilst waiting to finish night on call... Babbling...

[ChrisLX200]

Who's he talking to? I can't see the replies...

ChrisH

[Russe]

The reply's always out there... (*knock *knock)

[Christopher Davenport]

Classic Russe, I often feel like this!

QQ, I have not got it to work yet.

Are you using a raw image from previous session?

What setting are important, to get the solve to work?

[Russe]

I'm using my last jpg I think. Took the first pic visible when clicking on GOTO image...

[Russe]

You need to download the right files for your setup. It's nicely explained in the help file. Can't remember right now (no surprise there)...

[PhotoGav]

Class! At least this proves that somebody is always listening to your questions... Yourself!

I've tried to suss out AT going to a previous target by using a sub from an earlier session, but it didn't work, though I was using the simulator. I'm wondering whether it's because there were just too many stars in a long 'normal' sub and it would work much better using a 10 second sub?

[Russe]

You need to download the right files for your setup. It's nicely explained in the help file. Can't remember right now (no surprise there)...

[Christopher Davenport]

Okay, I will re-install it as I may have the wrong file set.

[Dave_D]

don't worry Russe, i talk to myself all the time. it's the only way i get a sensible conversation, inasmuch as 'sensible' can adequately describe the weirdness that goes on in my head 

[Dave_D]

dunno if you've read this:

http://lightvortexastronomy.blogspot.co.uk/2013/08/tutorial-imaging-setting-up-and-using.html

[SnakeyJ]

Very useful stream of consciouness Russ - the AT guide is written by Gib007 and I think is linked in SGL links, though can't confirm from phone. Glad to hear you got this sorted.

typed on my mobile with Tapatalk

[SnakeyJ]

Dave's got it!

typed on my mobile with Tapatalk

[Russe]

dunno if you've read this:

http://lightvortexastronomy.blogspot.co.uk/2013/08/tutorial-imaging-setting-up-and-using.html

That was the link I was looking for! Thanks!!

[Russe]

Class! At least this proves that somebody is always listening to your questions... Yourself!

I've tried to suss out AT going to a previous target by using a sub from an earlier session, but it didn't work, though I was using the simulator. I'm wondering whether it's because there were just too many stars in a long 'normal' sub and it would work much better using a 10 second sub?

No, works fine with a 300s exposure sub. Tried it out and it solves it fantastically.

The only remaining problem is rotation. But I fight this issue by keeping the camera in situ.

[r3i]

dunno if you've read this:

http://lightvortexastronomy.blogspot.co.uk/2013/08/tutorial-imaging-setting-up-and-using.html

That's a brilliant resource on how to get to grips with AT - it made all the difference to me.

[PhotoGav]

No, works fine with a 300s exposure sub. Tried it out and it solves it fantastically.

The only remaining problem is rotation. But I fight this issue by keeping the camera in situ.

Thanks Russe - I will apply myself to this properly sooner or later... Though the clouds........

[ChrisLX200]

I use Elbrus in combination with SGPro, it plate solves quickly and for camera rotation (assuming you don't have a powered rotator) it allows for manual rotation by telling you which way to turn and by how many degrees - a bit of an iterative process to get it spot on but then there is no other way without the powered camera rotator.

ChrisH

[Christopher Davenport]

dunno if you've read this:

http://lightvortexastronomy.blogspot.co.uk/2013/08/tutorial-imaging-setting-up-and-using.html

Thanks All

I have worked through this and finally got it to work with some subs from previous sessions.

Tips for others:

Don't use a stacked images for solving

Divide your FOV numbers by 60 to get to Degwidth.

Make sure you update the custom settings to speed things up.

--sigma 70 --no-plots -N none -r --objs 50 -c 0.02

Now to get this to work for each telescope reducer combination and save the files.

(Once the image has been solved it updates the FOV numbers, so can save these for future use.)