PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/05-05:27:50
G01     81.4           33.0                5.9 +/-    0.89       9.7 +/-    0.89  0.100 / 0.110
G07     131.6          37.0                8.9 +/-    0.59      13.7 +/-    0.59  0.090 / 0.100
G11     59.4           35.2                3.9 +/-    0.74       6.1 +/-    0.74  0.050 / 0.090
G13     285.3          38.0                5.5 +/-    1.24       8.3 +/-    1.24  0.040 / 0.070
G15     311.4          11.7                1.9 +/-    1.78       5.2 +/-    1.78  0.030 / 0.030
G17     220.4          63.7                9.6 +/-    0.63      10.5 +/-    0.63  0.030 / 0.040
G19     218.1          31.4                8.6 +/-    1.28      14.6 +/-    1.28  0.040 / 0.050
G28     359.0          61.3                5.5 +/-    0.61       6.2 +/-    0.61  0.040 / 0.040
G30     122.2          71.9                8.9 +/-    0.72       9.3 +/-    0.72  0.080 / 0.120