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Re: NINA Controlling Losmandy G11. Coordinate are not the same. Why?


 

hi pcboreland

i think you may have confused things?

Here is from the Gemini Telescope.net manual, talking about the J2000 OPTION (not default):

Gemini Expects J2000 Coordinates ¨C?

By default Gemini expects epoch of the day (so called JNow) coordinates to be provided as a GoTo destination. Most planetarium software does send JNow coordinates, but if yours can only send J2000 then you need to set this parameter. This setting only affects coordinates sent to Gemini, all coordinates sent out by Gemini are JNow.
By default, Gemini assumes that any coordinates you enter are for the epoch of the current date.?

in other words, Gemini's default is JNOW.?

you switched it to JNOW, and now it's working as expected, which sounds all correct to me

Regarding meridian flip, lots of people have issues first setting it up, particularly with NINA (i don't know exactly what that is, defaults in NINA? it's free so the first package they use? dunno). It can be complicated and the flip not coordinated in the way people may think between the software and the mount (any mount really). it requires you to understand and set the values correctly.

I suspect you may need to set your limits and western goto, here's the description of how they work and how to set them.



One thing that's important to note is your telescope/mount setup has to be able to reach the intended target from both sides of the meridian. If the limits you set (or don't set) tell Gemini that target is not reachable, it will not do the flip?

I know it's easy to blame software or the mount, but Gemini has been running fine for many years, many people including myself don't have any issues including sending goto, meridian flips, etc. I think Paul Kanevsky has done exceptional work in having the ascom driver be one of the most stable available today.

hang in there, I think you'll get your settings correct and i predict all will be working

Brian


On Thu, Dec 3, 2020 at 6:55 PM pcboreland via <pcboreland=[email protected]> wrote:

[Edited Message Follows]

Just to be clear. NINA was sending co-ordinate information to Gemini in J2000 format. Its failed to understand it correctly. Similarly other programs like Cartes de Ciel also had a similar error. I had selected in Gemini the J2000 format. When I deselected J2000 in Gemini, NINA defaulted to JNOW and things appeared to work OK. The fault seems to lie with Gemini. It has I think some serious problems. Right now I'm can not get it to do a meridian flip correctly. Either with NINA or using? the Gemini Telescope Application. It simply does not work. This is most surprising as I had mush respect for the brand but not so much now. Interesting there are no Losmandy videos on this subject which may speak to the issue. I wonder if their software is perhaps in the hands of a third party.



--
Brian?



Brian Valente
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