PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/23-06:28:10
G01     74.7           33.2                5.1 +/-    0.56       8.5 +/-    0.56  0.030 / 0.040
G07     135.3          32.2                8.6 +/-    0.49      14.4 +/-    0.49  0.030 / 0.030
G11     54.8           31.7                4.2 +/-    0.62       7.1 +/-    0.62  0.060 / 0.090
G13     278.2          38.2               -0.3 +/-    1.00      -0.4 +/-    1.00  0.050 / 0.140
G15     307.3          13.2                2.8 +/-    1.32       7.2 +/-    1.32  0.040 / 0.030
G17     228.1          69.0                8.1 +/-    0.91       8.6 +/-    0.91  0.040 / 0.040
G19     221.5          36.2                8.1 +/-    1.02      12.5 +/-    1.02  0.040 / 0.060
G28     9.9            60.6                4.9 +/-    0.89       5.6 +/-    0.89  0.050 / 0.050
G30     131.5          66.8                7.3 +/-    0.45       7.9 +/-    0.45  0.040 / 0.090