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Table 11

PT focal plane offsets.

Filter x y a u a g a r a i a z
G191B2B 816 1013 0.0018 0.0026 0.0015 0.0016 0.0039
GD71 261 1251 0.0153 0.0149 0.0080 0.0058 0.0100
GD153 914 1426 –0.0006 0.0021 –0.0010 –0.0008 0.0022
P041C 977 898 0.0021 0.0004 0.0003 0.0015 –0.0003
P177D 712 1239 0.0040 0.0050 0.0018 0.0013 0.0038
P330E 876 633 0.0001 0.0018 0.0046 0.0031 0.0024
BD+17° 4708 1024 1024 0.0024 –0.0001 0.0002 0.0018 –0.0015
Error 1024 1024 0.0028 0.0009 0.0009 0.0019 0.0018

Notes.Values of the a term from Eqs. (24)–(28) at the position of the PT focal plane where the star is measured. See Fig. 25 for a map of the correction.

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