Can anyone tell me what the custom rate units are?

I'm guessing arcsec/sec so 14 would be sidereal.

Also during autoguiding does program use 67% of this custom value?

thanks

John W.

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John Waskiewicz

Gday John

For standard Firmware ( ie *** Seymours patch for finer tracking rate isnt applied )
Custom rates are 0.1% adjusts relative to sidereal
Lunar is 35    ie   sidereal * 1.035

Autoguiding uses the converted rate multiplied by the guide rate
You quoted 67%, but guide rate is also settable
so it uses whatever you have set.

Andrew

Thanks andrew

I've read on this site that the LX200 guide rate is settable and its default is 67%.

Is this 1.067x sidereal?

I took this 67% x sidereal or 0.67

I see no settings for the LX90 unless it by the custom rate?

is the custom typically used for autoguiding adjustments?

 

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John Waskiewicz

Gday John

Re the LX200, the "guide rate" is settable and 66% is the default
This means  Guide := Sidereal +/- 0.66*Sidereal

I am not absolutely sure on the LX90 ( as 99% of my time is LX200s )
but i believe ( based on old notes ) that it is hardcoded to 50%

The Custom rate is always applied, so is only useful for underlying tracking rate errors
Guide rate is only used when the speed is set to 1 and a move request comes in
via the serial comms or HBx.

Andrew

Andrew wrote:
Lunar is 35    ie   sidereal * 1.035

Actually, lunar is -slower- that sidereal, so that should've said
Lunar is -35    ie   sidereal * 0.965
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and Guide Rate is -not- (casually) settable in the 497
My (admittedly faulty) wetware memory says that it's 67% of sidereal.

Occasionaly i have my patch kits include an option for setting the rate
to some fixed number -other- that 67% (the last person who wanted that
wanted 10% of sidereal)

have fun
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