PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/01-18:58:00
G01     38.5           12.3                8.2 +/-    1.75      21.6 +/-    1.75  0.040 / 0.070
G02     199.5          12.0               11.7 +/-    5.61      31.1 +/-    5.61  0.050 / 0.080
G06     174.2          43.0               12.6 +/-    1.17      17.5 +/-    1.17  0.110 / 0.180
G13     232.8          19.3               13.0 +/-    0.93      29.1 +/-    0.93  0.090 / 0.180
G15     266.0          10.5               11.4 +/-    1.41      31.4 +/-    1.41  0.150 / 0.330
G17     8.3            67.5                9.9 +/-    0.76      10.6 +/-    0.76  0.120 / 0.380
G19     293.4          71.4               10.8 +/-    0.77      11.3 +/-    0.77  0.110 / 0.200
G24     314.5          23.1                8.9 +/-    1.86      18.1 +/-    1.86  0.170 / 0.280
G28     72.6           48.5                9.9 +/-    0.57      12.8 +/-    0.57  0.110 / 0.330
G30     154.7          20.0               11.1 +/-    2.01      24.5 +/-    2.01  0.120 / 0.330