PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-22:12:50
G01     76.9           33.0                8.9 +/-    1.29      14.6 +/-    1.29  0.080 / 0.100
G07     133.9          30.9               10.9 +/-    1.43      18.8 +/-    1.43  0.050 / 0.100
G11     56.5           33.4                9.0 +/-    2.56      14.6 +/-    2.56  0.040 / 0.050
G13     280.7          38.5                8.0 +/-    2.82      11.9 +/-    2.82  0.040 / 0.040
G15     306.6          14.2                6.8 +/-    3.92      17.1 +/-    3.92  0.090 / 0.100
G17     224.2          65.8               11.6 +/-    0.98      12.6 +/-    0.98  0.090 / 0.090
G18     51.1           18.9                8.9 +/-    1.43      20.1 +/-    1.43  0.060 / 0.090
G19     219.8          36.8               12.7 +/-    2.19      19.5 +/-    2.19  0.070 / 0.110
G28     1.6            61.2                8.7 +/-    0.59       9.7 +/-    0.59  0.030 / 0.030
G30     129.1          66.4               11.4 +/-    0.55      12.3 +/-    0.55  0.030 / 0.030