PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/02-07:12:40
G01     125.0          11.7                3.7 +/-    2.56      10.0 +/-    2.56  0.040 / 0.040
G07     58.0           68.8                5.0 +/-    0.67       5.3 +/-    0.67  0.040 / 0.040
G08     51.2           40.8                3.9 +/-    0.71       5.6 +/-    0.71  0.030 / 0.040
G09     176.7          34.7                7.8 +/-    1.70      12.5 +/-    1.70  0.030 / 0.040
G11     120.0          36.5                6.6 +/-    0.98      10.2 +/-    0.98  0.090 / 0.360
G13     320.5          13.3                0.5 +/-    1.70       1.3 +/-    1.70  0.100 / 0.310
G17     199.8          13.7                3.1 +/-    2.59       8.0 +/-    2.59  0.100 / 0.270
G18     102.6          16.9                5.9 +/-    1.70      14.1 +/-    1.70  0.100 / 0.370
G28     269.1          47.1                6.6 +/-    0.78       8.6 +/-    0.78  0.120 / 0.330
G30     330.2          59.3                3.6 +/-    0.66       4.1 +/-    0.66  0.110 / 0.390