PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-21:42:50
G01     252.6          38.2               10.2 +/-    1.57      15.2 +/-    1.57  0.060 / 0.050
G03     316.8          38.3                7.2 +/-    0.99      10.7 +/-    0.99  0.040 / 0.050
G11     244.1          13.5                7.7 +/-    4.34      20.0 +/-    4.34  0.060 / 0.080
G14     50.8           47.4                7.5 +/-    0.80       9.7 +/-    0.80  0.050 / 0.070
G22     309.3          60.7                8.2 +/-    0.85       9.2 +/-    0.85  0.060 / 0.080
G23     283.5          16.9               10.2 +/-    2.36      24.2 +/-    2.36  0.080 / 0.070
G25     43.5           12.2                6.4 +/-    1.26      17.0 +/-    1.26  0.280 / 0.170
G26     140.0          34.6               11.5 +/-    1.01      18.3 +/-    1.01  0.150 / 0.250
G31     43.5           62.5                7.0 +/-    0.64       7.8 +/-    0.64  0.040 / 0.050
G32     74.1           24.2                8.2 +/-    0.69      16.4 +/-    0.69  0.030 / 0.040