Amount of Correction of SLR Spider-Cal in 1999

 

                                                           P3

 

 

 

 

 

 

                  P1

                                                                    P2

d
 
 

 

 

 

 


                                                            Unit : m

 

Koganei

Kashima

P1

 

 

X=     2.4754

Y=   -1.9949

H= 123.3574

X= -12.6578

Y= -12.7410

H=  70.1393

P2

 

 

X=     3.8258

Y=   -2.5569

H= 123.3606

X=  -11.5431

Y= -13.6876

H=  70.1387

P3

 

 

X=     3.4934

Y=   -2.5928

H= 123.2348

X=  -11.8742

Y= -13.6235

H=  70.0176

d

0.0127

0.0127

D

1.1566

1.1558

 

 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


1.      Survey point

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

P2········· Rear center of SLR telescope secondary mirror

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

 

  Offset

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

 

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

 

 

Where