PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-05:28:10
G01     86.8           31.2                6.9 +/-    0.50      11.9 +/-    0.50  0.030 / 0.030
G07     125.8          44.7                8.6 +/-    1.86      11.6 +/-    1.86  0.030 / 0.030
G11     70.3           42.7                6.4 +/-    0.49       8.9 +/-    0.49  0.040 / 0.080
G13     292.6          37.6                7.8 +/-    0.81      11.8 +/-    0.81  0.040 / 0.080
G15     313.2          11.6                4.1 +/-    2.80      10.9 +/-    2.80  0.110 / 0.390
G17     213.5          54.4               10.7 +/-    1.06      12.8 +/-    1.06  0.140 / 0.250
G19     213.7          30.0                8.1 +/-    1.74      14.2 +/-    1.74  0.090 / 0.120
G28     332.2          60.9                5.5 +/-    1.03       6.2 +/-    1.03  0.090 / 0.140
G30     99.0           79.3                6.5 +/-    0.68       6.6 +/-    0.68  0.040 / 0.060