2021                 DT= 70.0                         
--------------------------------------------------------------                       
  The epoch Т=J2021.5 is the date 2021  July      2.375(JD 2459397.875)
  it corresponds to the Besselian epoch B2021.50174
 
 Beginning of the spring March     20,  9 37.5  UT
    >>            summer June      21,  3 32.2  >>
    >>            autumn September 22, 19 21.1  >>
    >>            winter December  21, 15 59.3  >>

 The Earth at perihelion January    2, 13.8 UT
 The Earth at aphelion   July       5, 22.5 >>