PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-09:58:00
G01     314.5          26.9               16.9 +/-    0.98      31.6 +/-    0.98  0.040 / 0.040
G10     94.6           45.8                6.0 +/-    1.34       8.0 +/-    1.34  0.060 / 0.030
G11     292.1          26.9                4.8 +/-    1.49       9.0 +/-    1.49  0.120 / 0.180
G14     331.8          70.8                4.6 +/-    0.95       4.8 +/-    0.95  0.100 / 0.130
G18     290.9          48.2                5.7 +/-    5.88       7.3 +/-    5.88  0.130 / 0.310
G20     113.7          21.4                5.3 +/-    1.80      11.2 +/-    1.80  0.210 / 0.170
G22     306.9          21.7                4.7 +/-    5.42       9.9 +/-    5.42  0.050 / 0.050
G25     91.6           12.5                4.9 +/-    2.20      12.8 +/-    2.20  0.050 / 0.050
G31     173.3          52.9                7.9 +/-    0.57       9.6 +/-    0.57  0.080 / 0.190
G32     15.9           63.3                5.1 +/-    0.62       5.6 +/-    0.62  0.070 / 0.210