PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-04:12:40
G01     69.5           31.7               19.7 +/-    1.05      33.3 +/-    1.05  0.030 / 0.030
G07     136.3          32.5                8.7 +/-    1.20      14.5 +/-    1.20  0.030 / 0.030
G11     56.5           35.7                6.8 +/-    0.95      10.7 +/-    0.95  0.110 / 0.250
G13     274.3          39.0                7.7 +/-    1.31      11.3 +/-    1.31  0.120 / 0.250
G15     300.6          16.5                3.9 +/-    2.05       9.4 +/-    2.05  0.110 / 0.060
G17     229.4          69.1                9.3 +/-    0.79       9.9 +/-    0.79  0.080 / 0.110
G19     222.1          43.4               10.6 +/-    1.87      14.6 +/-    1.87  0.040 / 0.050
G28     358.9          61.5                6.5 +/-    0.48       7.2 +/-    0.48  0.050 / 0.050
G30     134.7          67.6                8.7 +/-    0.66       9.3 +/-    0.66  0.060 / 0.080