PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-23:27:50
G07     349.8          63.2                8.2 +/-    0.43       9.0 +/-    0.43  0.070 / 0.090
G08     83.4           53.2                8.3 +/-    0.72      10.1 +/-    0.72  0.060 / 0.090
G09     184.7          63.4               10.5 +/-    1.00      11.6 +/-    1.00  0.040 / 0.040
G11     141.0          18.9                9.0 +/-    1.48      20.3 +/-    1.48  0.040 / 0.030
G23     158.0          30.0                8.8 +/-    0.96      15.3 +/-    0.96  0.090 / 0.070
G27     46.2           24.8                6.4 +/-    2.69      12.6 +/-    2.69  0.110 / 0.110
G28     246.9          38.1                8.3 +/-    1.43      12.4 +/-    1.43  0.080 / 0.090
G30     313.6          45.7                7.0 +/-    0.99       9.3 +/-    0.99  0.080 / 0.100