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- Astronomical Telescope Control -
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Copyright 2014 John Kielkopf
kielkopf@louisville.edu

Distributed under the terms of the MIT License (see LICENSE)

Date: June 17, 2015
Version 7.1


History:

February 17, 2002
Version 1.00
Basic panel with callbacks tested with XEphem 3.5.2 and LX200 16-inch

May 15, 2003
Version 2.00
Working with NexStar 11-inch

October 7, 2004
Version 2.1.4
Fifo reading modified for XEphem 3.6.xx

October 22, 2004
Version 2.2
Elwood Downey kindly provided a patch
that makes XmTel update its target coordinates immediately
upon a telescope "Go To" request from XEphem.
Version number bump reflects the improved functionality
and the start of a new development cycle.

March 25, 2006:
Version 3.0.0
New control panel with an observing queue and a log
Pointing to apparent position including
proper motion
precession and nutation to epoch of date
stellar aberration
User interface management for pointing corrections
atmospheric refraction
polar axis altitude and azimuth
declination axis to polar axis non-orthogonality
optical axis skew
altitude- and azimuth-dependent mechanical effects
encoder reference
Control of telescope hardware

August 20, 2006
Version 3.0.4
Modifications from Dan Azari adding features
suported by the RC Optical Systems telescope and mounting

September 7, 2006
Version 3.0.6
Reorganized reference and synchronize functions
Added focus control panel

October 14, 2006
Version 3.1
Cleaned up the source code a little for release
Updated DOCUMENTATION

October 16, 2006
Version 3.1.1
Fixed the missing conversion to J2000 for marker coordinates
XmTel will now send coordintes to XEphem that are displayed accurately

May 5, 2007
Version 4.0 experimental
Adopted XML for link from this control to the telescopes
Added network communication to remote telescope through SSH tunneling
Improved handling of focus control
Added handler for mounting misalignment (experimental)

April 12, 2008
Version 4.1 small corrections
Added slew limits control to startup procedures in nexstar protocol
Simplified startup in xmtel

September 12, 2008
Version 5.0 for INDI released
XML rewritten to use INDI because of its support for multiple clients
and reliable transport tunneled through SSH
Incremented version number to reflect INDI dependency
Pointing corrections are now fully implemented (experimental)
An optional configuration file is now read on startup
This release is based on the user interface from Version 4.1
Standalone xmtel1 wihtout INDI remains available (see README)

September 26, 2008
Version: 5.0.1
Fixed missing transmission of target coordinates to indiserver in xmtel
Fixed error parsing target coordinates in inditel
Tested with CDK20 using indiserver and xephem at the telescope
and xmtel remotely

September 27, 2008
Version: 5.0.2 under development
Modified handling of reference offset in inditel
Corrected and improved the NexStar driver

January 1, 2009
Version: 5.0.3 released
Includes aux command set for fully remote operation of a NexStar telescope
Updated for 2009 leapsecond

July 27, 2009
Version: 5.0.4 released
Indiserver polling modified to minimize serial chatter with telescope

October 29, 2009
Version: 5.0.6 released
Improved NexStar "aux" driver allows unattended Celestron telescope startup

November 14, 2009
Version: 5.0.8 released primarily with changes for the Celestron C20
Corrected an an encoder reading error in the NexStar "aux" driver
Improved focus control in the NexStar "aux" driver to calibrate in microns
Added temperature reading and fan control to the NexStar "aux driver

November 28, 2009
Version: 5.1.0 released
Restricted INDI client so that by default it sees only "tel"
Added a define to permit changing the focus scale and direction sense
in the NexStar controllers used by the C20

November 29, 2009
Version: 5.1.1 released
Fixed stop function for nexstar/aux
Changed path for two-part slew near the pole in nexstar/aux

December 2, 2009
Version: 5.1.2 released
Corrected an encoder reading error when HA is past the meridian limit for
a GEM mount in nexstar/aux.

December 21, 2009
Version: 5.1.3 released
Nexstar aux selection of two phase slew modified

January 22, 2010
Version: 5.1.4 released
Galil servo motor control option added for xmtel1

March 20, 2010
Version: 5.1.5 released
Galil motion controller support for indi added

August 11, 2010
Version: 5.2.0 released
Cleaned up development and added RC Optical support back into the tree
Added support for the Software Bisque Paramount through TheSkyX
Modified makefiles to allow for 64-bit OS's

October 14, 2010
Version: 5.2.1 released
Added support for the Software Bisque Paramount using RTS2's library
Added Park to target presets
Added www examples
Corrected a few known minor bugs

September 22, 2011
Version 5.3.0 released
Added support for the Planewave A200HR mount with Sitech controller
Added CenterGuide option to enable precision encoder guiding
Updated www examples

July 22, 2012
Version 6.0 beta release
Various changes to correct all known errors
Incremented leapsecond to +35
Consistent external routines for focus, rotate, temperature control

January 18, 2014
Version 6.1
Updated in preparation for adding XPA interface
Version 6 is the last maintained with INDI dependencies

June 20, 2014
Version 7.0
Incorporated XPA
Updated support for Galil controllers
Migrated instrument controllers to separate user interfaces

June 17, 2015
Version 7.1
Various bug fixes
Updated support for Paramount mks
Updated support for Galil controllers


Under development:

Support for Planewave CDK700 through a co-hosted virtual server
Remote operation through a web server
Refinements to the Galil support
Unique support for a specialized RCOS telescope and Renishaw encoders