PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-21:43:00
G01     113.1          21.5               14.8 +/-    2.51      31.4 +/-    2.51  0.040 / 0.040
G07     99.8           58.4               14.7 +/-    0.63      17.0 +/-    0.63  0.030 / 0.040
G08     42.5           24.4               11.1 +/-    2.19      22.1 +/-    2.19  0.130 / 0.170
G09     176.3          20.6               15.7 +/-    3.30      34.0 +/-    3.30  0.140 / 0.200
G11     96.0           42.2               14.6 +/-    0.71      20.5 +/-    0.71  0.120 / 0.200
G13     314.0          24.8               11.3 +/-    1.18      22.1 +/-    1.18  0.080 / 0.190
G17     202.3          32.6               15.6 +/-    1.88      26.0 +/-    1.88  0.040 / 0.070
G18     84.2           22.3               12.5 +/-    1.22      25.9 +/-    1.22  0.040 / 0.060
G28     298.1          57.5               12.2 +/-    0.99      14.2 +/-    0.99  0.170 / 0.170
G30     1.0            74.0               12.6 +/-    0.92      13.1 +/-    0.92  0.150 / 0.120