Year

Center X

Center Y

Major Semi-axis

Minor Semi-axis

Rotation

Oblateness

Geography

113.6175

33.8760

181632.63

170609.21

109.25

0.0607

2006

113.9257

34.1024

166757.69

153896.31

8.45

0.0771

2007

113.9252

34.1029

166610.58

153758.13

8.29

0.0771

2008

113.9251

34.1018

166507.93

153912.82

8.45

0.0756

2009

113.9250

34.1005

166700.47

153723.34

8.64

0.0778

2010

113.8866

34.1355

165927.22

151277.74

15.61

0.0883

2011

113.8866

34.1387

165648.24

151287.21

14.88

0.0867

2012

113.8850

34.1358

166185.51

151415.71

13.00

0.0889

2013

113.8825

34.1390

165995.82

151249.49

12.51

0.0888

2014

113.8817

34.1402

165844.86

151111.05

11.55

0.0888

2015

113.8798

34.1424

165709.44

150888.55

11.87

0.0894

2016

113.8782

34.1430

165747.72

150833.23

11.57

0.0900

2017

113.8771

34.1446

165681.99

150703.48

11.35

0.0904

2018

113.8758

34.1476

165473.23

150433.00

10.32

0.0909

2019

113.8743

34.1497

165353.88

150263.20

10.37

0.0913

2020

113.8956

34.1861

163204.94

147283.89

11.21

0.0976

2021

113.8915

34.1882

163010.00

147179.21

11.02

0.0971

Mean

113.8935

34.1374

165647.50

151201.00

11.19

0.0872