Month

Angstrom-Prescott Err (%)

Allen Err (%)

Sabbagh Err (%)

January

4.537

−7.438

3.292

February

−7.030

−12.777

4.462

March

−13.418

−22.701

3.269

April

−15.481

−29.689

3.481

May

−12.33

−27.670

5.216

June

−9.011

−26.694

2.707

July

3.419

−24.881

1.682

August

6.998

−21.351

0.150

September

2.043

−23.357

−1.314

October

0.743

−11.710

8.325

November

6.087

−6.051

14.855

December

11.496

4.242

11.780

Average

−1.829

−17.506

4.825