PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-06:57:40
G01     113.5          20.2                6.2 +/-    0.62      13.6 +/-    0.62  0.030 / 0.030
G07     91.8           63.3                5.7 +/-    0.93       6.4 +/-    0.93  0.040 / 0.040
G08     43.8           29.0                2.4 +/-    0.56       4.4 +/-    0.56  0.050 / 0.090
G09     175.0          20.7                5.3 +/-    1.19      11.5 +/-    1.19  0.050 / 0.070
G11     103.9          42.9                7.2 +/-    0.99      10.0 +/-    0.99  0.090 / 0.220
G13     314.9          23.9                2.3 +/-    2.23       4.5 +/-    2.23  0.080 / 0.210
G17     202.2          27.6                5.2 +/-    0.57       9.6 +/-    0.57  0.030 / 0.040
G28     288.6          54.0                5.9 +/-    0.61       7.1 +/-    0.61  0.030 / 0.040
G30     347.6          70.5                4.6 +/-    1.03       4.9 +/-    1.03  0.050 / 0.060