PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-22:42:50
G01     60.8           30.6                9.7 +/-    1.30      16.8 +/-    1.30  0.150 / 0.160
G07     141.2          18.4               11.8 +/-    2.07      27.0 +/-    2.07  0.080 / 0.120
G11     47.8           23.4                7.8 +/-    1.65      15.8 +/-    1.65  0.060 / 0.050
G13     262.8          36.2               11.6 +/-    1.71      18.0 +/-    1.71  0.040 / 0.030
G15     294.1          16.5                8.2 +/-    1.55      19.6 +/-    1.55  0.100 / 0.110
G17     258.3          77.5               11.7 +/-    0.29      11.9 +/-    0.29  0.080 / 0.100
G18     41.0           11.4                8.2 +/-    1.98      22.2 +/-    1.98  0.090 / 0.120
G19     231.0          49.7               12.1 +/-    2.61      15.4 +/-    2.61  0.090 / 0.120
G28     27.5           58.8                8.6 +/-    0.82       9.9 +/-    0.82  0.040 / 0.040
G30     143.0          52.6               12.0 +/-    0.90      14.7 +/-    0.90  0.040 / 0.030