Month

Angstrom-Prescot Err (%)

Allen Err (%)

Sabbagh Err (%)

January

13.41

22.629

1.562

February

−0.372

4.730

0.186

March

−11.604

−5.652

−4.183

April

−13.001

−11.828

−0.208

May

−10.214

−12.63

−0.673

June

−7.577

−12.649

−4.943

July

0.054

−9.729

−5.975

August

−0.414

−15.951

−12.373

September

2.094

−11.264

−7.69

October

6.993

3.877

5.543

November

13.416

18.321

12.405

December

22.402

31.088

12.177

Average

1.265

0.078

−0.348