PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/22-04:57:40
G01     121.2          16.1                6.6 +/-    1.16      15.9 +/-    1.16  0.030 / 0.040
G07     77.6           66.3                6.0 +/-    0.66       6.5 +/-    0.66  0.030 / 0.040
G08     45.1           31.1                3.7 +/-    0.39       6.4 +/-    0.39  0.090 / 0.230
G09     175.0          25.8                8.1 +/-    1.33      15.6 +/-    1.33  0.100 / 0.200
G11     107.7          39.2                6.7 +/-    0.98       9.9 +/-    0.98  0.030 / 0.040
G13     318.6          17.9               -1.2 +/-    2.14      -2.7 +/-    2.14  0.030 / 0.040
G17     200.0          24.4                5.7 +/-    1.93      11.4 +/-    1.93  0.070 / 0.180
G28     285.6          55.2                5.5 +/-    0.95       6.6 +/-    0.95  0.080 / 0.170
G30     339.4          65.4                4.5 +/-    0.54       4.9 +/-    0.54  0.040 / 0.070