PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-07:27:40
G01     76.4           33.2                6.4 +/-    0.99      10.4 +/-    0.99  0.040 / 0.040
G07     134.5          34.4               10.5 +/-    1.68      16.9 +/-    1.68  0.030 / 0.040
G11     57.5           33.3                5.5 +/-    1.10       9.1 +/-    1.10  0.060 / 0.060
G13     282.3          37.1                7.5 +/-    2.22      11.4 +/-    2.22  0.060 / 0.080
G15     306.5          14.4                2.5 +/-    3.87       6.4 +/-    3.87  0.120 / 0.260
G17     226.5          66.4               10.1 +/-    0.79      10.9 +/-    0.79  0.080 / 0.230
G19     221.0          39.1                8.9 +/-    1.42      13.1 +/-    1.42  0.030 / 0.030
G28     12.4           60.0                5.6 +/-    0.61       6.3 +/-    0.61  0.030 / 0.030
G30     129.1          65.6               10.0 +/-    0.64      10.9 +/-    0.64  0.070 / 0.080