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Old 08-08-2012, 04:25 PM
gary
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Join Date: Apr 2005
Location: Mt. Kuring-Gai
Posts: 5,916
Argo Navis and horizon checking

Quote:
Originally Posted by sparrow_34 View Post
One question to Gary if he reads this, in the tour mode I noticed some of the objects in the "Tour'" would have required the altitude to be lowered, in effect below the horizon ie down arrow 100 degrees. Is this normal or have I overlooked something, or was I simply tired and seeing things

All in all I'm extremely impressed with the Argo Navis
Hi Paul,

Thanks for the post and great to hear you are enjoying Argo Navis.

When you select a filter selection of CONSTELLATION or "WITHIN so many degrees"
in MODE TOUR or MODE IDENTIFY, Argo Navis does not provide any additional
horizon filtering.

If you point the scope at the zenith and apply a filtering criteria of 180 degrees
in MODE TOUR or MODE IDENTIFY, that would include only targets above
the horizon.

If used in conjunction with a ServoCAT, if the user has entered the approximate
location in SETUP LOCATION and the time in SETUP DATE/TIME, Argo Navis
computes where the local horizon is and if the user attempts to perform a GOTO
to a target beneath the horizon, Argo Navis informs the ServoCAT that the slew
would be unwise and does not take it. The ServoCAT then requests the Argo Navis
to play some down-beat notes to alert the user that the slew will not be taken.

Some work has been done toward an enhancement to provide additional horizon filtering criteria
for MODE IDENTIFY and MODE TOUR and this may appear in a future firmware release.

We are currently completing a minor firmware release which we hope to make
available soon that provides some new refinements to the ServoCAT protocol
and some precessional corrections to some of the serial port protocols such as
the "meade" protocol.

Best Regards

Gary Kopff
Managing Director
Wildcard Innovations Pty. Ltd.
20 Kilmory Place, Mount Kuring-Gai
NSW. 2080. Australia
Phone +61-2-9457-9049
Fax +61-2-9457-9593
sales@wildcard-innovations.com.au
http://www.wildcard-innovations.com.au
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