Operation
1. From the Main menu, select Tracking functions...; then select Modify current
target... and Tracking signal parameters....
2. Using the arrow keys, move the cursor to the parameter to be edited and press
[ENTER]. Using the numeric keys, enter a value within the range specified in the
system prompt and press [ENTER].
3. Press the [PRIOR] key and the following prompt appears:
Save changes to menu "Tracking signal parameters"? (yes/no)
[YES/NO] changes YES/NO response. [ENTER] accepts displayed YES/NO
response.
4. To save the changes, toggle the YES/NO key to YES and press [ENTER].
5.8.2.3.3 Reset OPT Target Function
The Reset OPT target function is only available when an OPT target is being
tracked. If this function is selected, the user is prompted to verify that the user
wants to erase all stored steptrack data and orbital models for the current target.
This is not required for normal operation. If the ACU is tracking poorly under OPT,
it may be necessary to use this function to cause OPT to discard poor steptrack
data and/or orbital solutions it has generated and stored.
Executing this function does not change any of the target's Steptrack or OPT
configuration parameters.
5.8.2.3.4 Set Star Time Bias Function
The Set star time bias... function is only available when a star target is being
tracked. The bias is a time value that is added to the current time to determine the
point in the star's trajectory to which the ACU will point.
By default, the star time bias is 00:00:00, which means that the ACU is tracking
the star in real time. If the bias is changed to a nonzero number, the ACU will "run
ahead" of the star by that amount of time. For example, if the star time bias is
00:01:00, the ACU will run 1 minute ahead of the star.
To edit the Set star time bias..., select the function, select Time bias, and enter the
desired numeric values (within the range of values specified in the system prompt).
5.8.2.3.5 Edit Current Target Menu
The function of this menu is identical to the function of the Edit a new or existing
target... menu (refer to Section 5.8.2.6), and is placed under Modify current
target... for convenience when modifying the current target.
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