PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-03:43:00
G01     50.5           25.7                5.2 +/-    1.84      10.0 +/-    1.84  0.040 / 0.060
G06     180.0          22.3                7.5 +/-    1.71      15.5 +/-    1.71  0.040 / 0.050
G07     146.2          12.9                6.6 +/-    3.60      17.3 +/-    3.60  0.210 / 0.100
G11     45.4           17.1                4.4 +/-    1.61      10.5 +/-    1.61  0.080 / 0.140
G13     252.0          30.5                5.9 +/-    1.60      10.3 +/-    1.60  0.100 / 0.160
G15     283.2          16.1                4.2 +/-    0.88      10.1 +/-    0.88  0.130 / 0.160
G17     308.6          78.4                6.0 +/-    0.54       6.1 +/-    0.54  0.080 / 0.210
G19     246.8          60.4                5.1 +/-    0.30       5.7 +/-    0.30  0.080 / 0.130
G28     52.9           52.6                4.8 +/-    1.07       5.9 +/-    1.07  0.030 / 0.030
G30     148.5          38.2                8.3 +/-    0.83      12.4 +/-    0.83  0.020 / 0.030