PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-01:57:40
G01     47.1           23.1                3.2 +/-    0.94       6.5 +/-    0.94  0.040 / 0.060
G06     178.3          27.7                5.6 +/-    1.49      10.2 +/-    1.49  0.040 / 0.060
G11     44.6           14.4                1.7 +/-    2.92       4.4 +/-    2.92  0.150 / 0.130
G13     247.3          28.1                3.8 +/-    1.95       6.9 +/-    1.95  0.060 / 0.100
G15     279.2          15.2                1.8 +/-    2.01       4.5 +/-    2.01  0.030 / 0.020
G17     323.5          77.1                3.4 +/-    0.33       3.5 +/-    0.33  0.030 / 0.030
G19     254.3          63.3                3.8 +/-    0.80       4.2 +/-    0.80  0.080 / 0.100
G24     318.9          10.7              -14.4 +/-   21.20     -39.7 +/-   21.20  0.090 / 0.140
G28     59.1           50.9                3.2 +/-    0.45       4.0 +/-    0.45  0.080 / 0.150
G30     150.3          33.6                7.2 +/-    1.51      11.8 +/-    1.51  0.070 / 0.140