Phd2 help

[AstroBogan (Jacob)]

Hi Guys,

So i had PHD2 guiding without any issues and with a total RMS failure of around .56. As soon as i stopped guiding on one target, i slewed to my new target for the night (NGC 6188). As soon as i started to guide, my graph ended up looking like the attached image. I have my mount tracking and my polar alignment is good. it just drifts and does not correct on RA..

Any idea WTH has happened?

[rustigsmed (Russell)]

its a good idea to recalibrate phd2 on each new target you go to. it's still calibrated at the last target.

[Imme (Jon)]

Originally Posted by rustigsmed

its a good idea to recalibrate phd2 on each new target you go to. its still calibrated at the last target.

I second that.
....and tick the corrections box so u can see what it is actually doing to correct the drift......it helps to see what commands phd is actually sending

[AstroBogan (Jacob)]

Thanks guys, worked a treat sorry for my noobishness. tonight was the first night i've been able to guide properly!

[rustigsmed (Russell)]

Originally Posted by Jsmitt94

Thanks guys, worked a treat sorry for my noobishness. tonight was the first night i've been able to guide properly!

no worries - that is what the forum is for! looking forward to seeing your pic

[Imme (Jon)]

Originally Posted by Jsmitt94

Thanks guys, worked a treat sorry for my noobishness. tonight was the first night i've been able to guide properly!

We’ve all been there....I spent countless nights trying to work phd2 out and asked plenty of questions too......the guys on here set me straight and now I feel I have a good grasp on the program.

....but......you now have to ‘pay it forward’ when you see a question asked that you have an answer to

[benklerk]

I calibrate I bit differently. I choose a star close to 0 deg Dec and near the meridian before my imaging session. This also gives me a chance to see if my polar alignment is still good.

I image all over the night sky from zenith to near the SGP and guiding is always spot on.
I have just rearranged my setup and I can easily guide for 10min to 15min, 20 min sometimes work. On my Heq5 pro belt mod.

I do use Sequence Generator Pro which connects to PHD2 and chooses a star and guides automatically.

Just my quick input on PHD2 guiding.

Ben

[luka]

Originally Posted by benklerk

I calibrate I bit differently. I choose a star close to 0 deg Dec and near the meridian before my imaging session. This also gives me a chance to see if my polar alignment is still good.

I image all over the night sky from zenith to near the SGP and guiding is always spot on.

Same here. I calibrate only once a night close to 0 Dec. Actually if you are too far from 0 deg Dec, PHD2 will suggest calibrating at <20deg Dec.