PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/29-10:58:10
G01     81.8           32.9                3.9 +/-    1.34       6.4 +/-    1.34  0.040 / 0.060
G07     131.3          37.4                4.6 +/-    0.88       7.0 +/-    0.88  0.040 / 0.070
G11     60.6           34.8                1.7 +/-    0.80       2.8 +/-    0.80  0.110 / 0.230
G13     288.5          36.4                7.7 +/-    1.05      11.9 +/-    1.05  0.120 / 0.230
G15     311.2          12.3                2.6 +/-    2.97       6.8 +/-    2.97  0.050 / 0.070
G17     220.7          62.9                9.6 +/-    0.67      10.7 +/-    0.67  0.050 / 0.080
G19     218.1          35.2                8.2 +/-    2.20      13.0 +/-    2.20  0.040 / 0.040
G28     3.5            60.8                4.5 +/-    0.80       5.1 +/-    0.80  0.050 / 0.040
G30     120.1          71.6                5.7 +/-    0.80       6.0 +/-    0.80  0.070 / 0.110