MOSFIRE Keyword Name | Description | Value for ROTDEST=0° | Relation to ROTDEST |
---|---|---|---|
SKYPA0 | Position angle of a vector normal to the CSU bars relative to celestial North. Note: Contrary to standards proposed in KSD 40 which stipulate that ROTPOSN is defined by the guider, the CSU normal vector is accepted as the fundamental definition of the position angle on MOSFIRE. MAGMA specifies this PA for slitmasks. | 0.00° | ROTDEST=SKYPA0 |
SKYPA1 | Position angle of MOSFIRE guider detector columns relative to celestial North. | +90.00° |
SKYPA1=ROTDEST+90.00°
ROTDEST=SKYPA1-90.00° |
SKYPA2 | Position angle of MOSFIRE science detector columns relative to celestial North. | +0.22° |
SKYPA2=ROTDEST+0.22°
ROTDEST=SKYPA2-0.22° |
SKYPA3 | Position angle of MOSFIRE longslit relative to celestial North. | +4.00° |
SKYPA3=ROTDEST+4.00°
ROTDEST=SKYPA3-4.00° |