PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/17-05:43:00
G01     78.0           33.2                4.6 +/-    0.67       7.5 +/-    0.67  0.030 / 0.050
G07     133.6          36.0                7.0 +/-    0.54      10.9 +/-    0.54  0.050 / 0.060
G11     59.1           34.8                3.1 +/-    1.08       5.0 +/-    1.08  0.040 / 0.070
G13     283.7          37.1                6.0 +/-    1.19       9.2 +/-    1.19  0.040 / 0.070
G15     307.2          14.2                3.0 +/-    1.85       7.7 +/-    1.85  0.050 / 0.040
G17     224.7          64.5                9.3 +/-    0.59      10.2 +/-    0.59  0.030 / 0.040
G19     220.1          37.7                8.4 +/-    2.29      12.7 +/-    2.29  0.100 / 0.210
G28     10.1           60.3                3.3 +/-    0.67       3.7 +/-    0.67  0.100 / 0.240
G30     127.6          65.7                6.0 +/-    0.44       6.5 +/-    0.44  0.050 / 0.110