Amount of Correction of SLR Spider-Cal and Amount of Correction of Penta-prism

 

                                                           P3

 

 

 

 

 

                                                  P4

D2

 
 
                P1

                                                                    P2

d
 
 

 

 

 


Unit : m

 

Koganei

Kashima

Miura

Tateyama

P1

 

 

X=     5.8383

Y= -18.7922

H=    8.9869

X= -12.6580

Y= -12.7410

H=    4.4428

X=   20.3190

Y= -24.6154

H=    4.4454

X=   -9.3497

Y=    0.3259

H=    4.4626

P2

 

 

X=     7.2568

Y= -19.1218

H=    9.1323

X=  -11.4149

Y= -13.5113

H=    4.4034

X=   19.7641

Y= -25.9644

H=    4.4389

X=   -9.8704

Y=    1.6937

H=    4.4387

P3

 

 

X=     6.9483

Y= -19.2161

H=    8.9785

X=  -11.7549

Y= -13.4947

H=    4.2897

X=   19.7288

Y= -25.6335

H=    4.5697

X=   -9.6198

Y=    1.4764

H=    4.5735

P4

 

 

X=     6.9160

Y= -18.8221

H=    8.8229

X=  -11.6733

Y= -13.0959

H=    4.1462

X=   20.1178

Y= -25.6823

H=    4.1770

X=   -9.9159

Y=    1.2144

H=    4.1761

d

0.0127

0.0127

0.0127

0.0127

D1

1.1578

1.1557

1.1528

1.1567

D2

1.0350

1.0316

1.0644

1.0363

※Observation date

1998.10.16

1998.11.02

1998.12.11

1998.12.09

 

 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



１．Survey point

P1········· SLR telescope reference point (SLR-CP0)

P2········· Rear center ofSLR telescope secondary mirror

P3········· Rear center point of Spider-Cal

P4········· Center point of Penta-prism

  Offset

d ·········· Offset value of Spider-Cal

 

２．Equation for calculating the amount of correction of Spider-Cal (D)

 

 

 

Where