Month

Angstrom-Prescott Err (%)

Allen Err (%)

Sabbagh Err (%)

January

−4.619

9.429

−11.667

February

−12.012

0.148

−9.068

March

−13.67

−10.817

−10.758

April

−9.747

−14.028

−7.899

May

−0.293

−7.534

−3.224

June

1.015

−6.222

−6.241

July

7.899

1.870

−0.819

August

9.040

−0.939

−3.173

September

1.184

−2.175

−7.359

October

2.645

−2.844

−8.134

November

−1.252

6.524

−8.023

December

−1.375

16.056

−6.989

Average

−1.765

−0.878

−6.946