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Image acquisition with the MU script
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Customizing the MU script
(continued)
Telescope slew limits
' TELESCOPE SLEW LIMITS
minAlt = 15. ' Targets below altitude minAlt (deg) will be skipped.
minHA = 0. ' Targets at |HA| < minHA (time minutes) will be skipped.
' This is zero for fork-mounted telescopes, and should be
' positive for German equatorial mounts like the Paramount
maxHA = 510. ' Targets at |HA| > maxHA (time minutes) will be skipped.
maxDec = +90. ' Targets north of declination maxDec (deg) will be skipped.
minDec = -28. ' Targets south of declination minDec (deg) will be skipped.
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- minAlt. This parameter specifies the minimum altitude
(in degrees) at which a target can be observed. If an object is at an altitude less than
minAlt when the telescope is about to slew toward it, the
slew is cancelled, and its observation is skipped. The minimum altitude limits specified in
user profiles and in
observation requests should not be less than
minAlt.
- minHA. This parameter specifies the minimum absolute value
of the hour angle (expressed in minutes of time) at which a target can be observed. If an object
is at an hour angle H such that |H| is less than minHA
minutes when the telescope is about to slew toward it, the slew is cancelled, and its
observation is skipped. The minimum |hour angle| limit specified in the
scheduler configuration file should not be less than
minHA.
- maxHA. This parameter specifies the maximum absolute value
of the hour angle (expressed in minutes of time) at which a target can be observed. If an object
is at an hour angle H such that |H| is greater than maxHA
minutes when the telescope is about to slew toward it, the slew is cancelled, and its
observation is skipped. The maximum |hour angle| limit specified in
user profiles, in the
scheduler configuration file, and in
observation requests should not be greater than
maxHA.
- maxDec. This parameter specifies the northernmost
declination (in degrees) at which a target can be observed. If an object is at
a declination north of maxDec when the telescope is about to slew
toward it, the slew is cancelled, and its observation is skipped.
- minDec. This parameter specifies the southernmost
declination (in degrees) at which a target can be observed. If an object is at
a declination south of minDec when the telescope is about to slew
toward it, the slew is cancelled, and its observation is skipped.
Pointing corrections
' POINTING CORRECTIONS
RACorrEast = +0.00000 ' Correction in RA (hours) to be used east of the meridian
DecCorrEast = -0.0000 ' Correction in Dec (deg) to be used east of the meridian
RACorrWest = +0.00000 ' Correction in RA (hours) to be used west of the meridian
DecCorrWest = +0.0000 ' Correction in Dec (deg) to be used west of the meridian
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This section specifies constant offsets in right ascension and declination which may be applied to
the target coordinates in an attempt to reduce telescope pointing errors. These are also useful
when one changes CCD cameras and the centers of the new and old detectors have different offsets
with respect to the optical axis. Different offsets may be defined for use on different sides of
the meridian (this may be useful for German equatorial mounts).
- RACorrEast. This is the correction in right ascension
(expressed in hours) to be applied for targets located east of the meridian.
- DecCorrEast. This is the correction in declination
(expressed in degrees) to be applied for targets located east of the meridian.
- RACorrWest. This is the correction in right ascension
(expressed in hours) to be applied for targets located west of the meridian.
- DecCorrWest. This is the correction in declination
(expressed in degrees) to be applied for targets located west of the meridian.
Previous: Telescope slewing parameters
Next: Timing tolerance/waiting times, bias and dark frame
parameters
© 1999-2004 Paulo Holvorcem
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