Parallel To The Measurement Slit

PARALLEL TO THE MEASUREMENT SLIT OF COMPONENT & POSITIVE SENSE DEFINED TO COMPLETE RIGHT-HANDED ORTHOGONAL SYSTEM ANO CONSISTENT WITH OUTPUT OF COMPONENT A. NOTE THAT THE LATTER REQUIREMENT OEPENOS ON THE INTERNAL SENSOR ALIGNMENT ANO MAY REQUIRE INVERTING THE SIGN OF THE A COMPONENT OUTPUT

*5A is positive if the boresight is above the spacecraft X- Y plane; ty is a positive rotation of the sensor about die boresight.

*5A is positive if the boresight is above the spacecraft X- Y plane; ty is a positive rotation of the sensor about die boresight.

03 is chosen so that the sensor output is positive toward the + Z-axis. Using Table E-l, we obtain the small angle approximation for the rotation matrix,

6 A cos — Sip sin 4>' — sin cos^' 6 A sin <>' + Sip cos 4>' cos <¡>' sin <>' -1 fy S A

The orientation of a two-axis sensor with boresight located at (4>,X) may be expressed similarly as the transpose of a 3-2-3 Euler rotation with angles 0, =<j>, 02 = 90° - A, and 03 = 90° + Sip, where Sip is a small misalignment angle about the boresight. Using Table E-l we obtain the small angle approximation for the rotation matrix,

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