72
maximum value before 90º then start counting down again. The maximum value is the position you should use for polar
aligning. You will also notice that when you move the telescope in altitude, the azimuth display will change slightly. This
is also due to the computer compensating for the mechanical characteristics of the telescope.
Pointing
GO TO Command
This is the command that tells the telescope to slew to an object. To use this command, the telescope needs to be
previously aligned.
BUTTON or ACTION
NOTES
DISPLAY
Start at the ALIGN menu.
MENU
ALIGN
Press DOWN twice.
Scroll to the CATALOG menu. Here
you can find the object you want to
look at.
MENU
CATALOG
Press ENTER
Enter into the CATALOG menu.
NAMED
STAR
Press UP
Scroll up to the NAMED OBJECT
catalog.
NAMED
OBJECT
Press ENTER
Enter into the NAMED OBJECT
catalog.
0043+413
ANDROMED
Press ENTER
While the message scrolls across the
bottom, you are at GO TO.
GO TO
Scrolling Message
Press ENTER while display reads GO TO.
The telescope slews to Andromeda
Galaxy.
0043+413
ANDROMED
Press MENU
Return to the main menu.
MENU
CATALOG
Press UP
Scroll to the GO TO menu.
MENU
GO TO
Press ENTER
Enter into the GO TO menu. Notice
that you are still in the NAMED
OBJECT CATALOG and last object
is displayed.
AUTO
ANDROMED
Press DOWN
Choose the MANUAL option.
MANUAL
ANDROMED
Press ENTER
Enter into the MANUAL option.
0
º
0 0
º
0
ANDROMED
Press DOWN until you reach PINWHEEL.
Scroll down the list of named objects.
12
!
5
$
2
PINWHEEL
Press ENTER two times.
The telescope will slew to the object.
0
º
0 0
º
0
PINWHEEL
Increasing Pointing Accuracy using Enhanced Encoder Resolution - EER
The Ultima 2000 has optical encoders on both axes. The resolution of each encoder is 2.5 arc minutes. Using the
enhanced encoder resolution gives the telescope eight times better resolution, approximately 19 arc seconds. This is the
maximum theoretical pointing accuracy. In order to use EER, you must center alignment objects with the tracking motors.
The blinking light on the drive base indicates what state the resolution is in. Blinking about once a second means the
telescope is in standard resolution mode, 2.5 arc minutes. Blinking twice a second means one of the axes is in EER When
both axes are in EER, the light stays on. This is the goal. Here is a demonstration you can try to get EER activated.