PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-22:12:50
G01     109.1          24.0               11.8 +/-    0.69      23.6 +/-    0.69  0.080 / 0.200
G07     106.4          55.4               11.8 +/-    0.67      13.9 +/-    0.67  0.070 / 0.190
G08     41.8           20.6                7.8 +/-    0.65      16.8 +/-    0.65  0.050 / 0.060
G09     175.5          16.4               13.8 +/-    2.89      33.2 +/-    2.89  0.040 / 0.060
G11     89.9           42.7               13.5 +/-    0.42      18.8 +/-    0.42  0.020 / 0.030
G13     311.1          27.8                7.3 +/-    0.82      13.5 +/-    0.82  0.030 / 0.030
G17     203.7          37.2               13.3 +/-    2.71      20.2 +/-    2.71  0.080 / 0.180
G18     79.4           23.1                9.2 +/-    1.54      18.9 +/-    1.54  0.080 / 0.180
G28     306.2          59.0               11.0 +/-    0.92      12.6 +/-    0.92  0.030 / 0.050
G30     14.5           77.0               11.7 +/-    1.04      11.9 +/-    1.04  0.030 / 0.050