PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-10:58:00
G01     45.2           21.2                3.0 +/-    0.56       6.3 +/-    0.56  0.060 / 0.070
G06     175.3          30.4                8.1 +/-    1.66      14.1 +/-    1.66  0.060 / 0.080
G11     44.0           12.7                2.0 +/-    1.34       5.3 +/-    1.34  0.130 / 0.320
G13     244.1          28.3                8.6 +/-    1.31      15.7 +/-    1.31  0.170 / 0.340
G15     279.3          14.5                5.8 +/-    1.68      14.5 +/-    1.68  0.040 / 0.030
G17     327.0          77.3                6.3 +/-    1.00       6.5 +/-    1.00  0.030 / 0.040
G19     256.5          65.8                5.6 +/-    0.49       6.1 +/-    0.49  0.090 / 0.170
G24     318.7          10.8              -13.1 +/-   23.78     -35.9 +/-   23.78  0.070 / 0.230
G28     50.0           55.6                3.7 +/-    0.36       4.4 +/-    0.36  0.030 / 0.040
G30     152.4          38.0                7.3 +/-    0.60      11.0 +/-    0.60  0.040 / 0.050