dateTtime sza saa vza vaa
2017-01-01T12:00:00    28.00    75.52     3.66   119.95
2017-01-11T12:00:00    29.48    74.33     3.71   119.64
2017-01-31T12:00:00    32.99    68.47     3.74   119.56
2017-02-10T12:00:00    34.99    64.34     3.73   119.63
2017-02-20T12:00:00    37.16    59.79     3.73   119.61
2017-03-02T12:00:00    39.50    55.08     3.74   119.51
2017-03-12T12:00:00    42.01    50.44     3.76   119.49
2017-03-22T12:00:00    44.65    46.03     3.68   119.84
2017-04-01T12:00:00    47.39    42.02     3.65   119.93
2017-04-11T12:00:00    50.17    38.51     3.61   120.16
2017-04-21T12:00:00    52.92    35.57     3.59   120.24
2017-05-01T12:00:00    55.53    33.23     3.58   120.28
2017-05-21T12:00:00    59.98    30.34     3.59   120.27
2017-05-31T12:00:00    61.62    29.73     3.63   120.08
2017-06-20T12:00:00    63.34    29.90     3.72   119.76
2017-07-05T12:00:00    63.05    30.94     3.65   121.73
2017-07-10T12:00:00    62.64    31.42     3.70   119.70
2017-07-30T12:00:00    59.45    33.72     3.65   119.94