PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/02-13:27:40
G02     75.5           20.3                4.5 +/-    0.81       9.9 +/-    0.81  0.050 / 0.310
G05     45.0           44.2                3.0 +/-    0.55       4.1 +/-    0.55  0.060 / 0.280
G12     180.4          13.0                4.9 +/-    3.86      12.7 +/-    3.86  0.100 / 0.150
G13     109.6          28.0                8.1 +/-    1.42      14.8 +/-    1.42  0.090 / 0.160
G15     153.9          28.4                7.5 +/-    1.43      13.6 +/-    1.43  0.100 / 0.130
G20     228.4          14.5                7.1 +/-    5.30      17.8 +/-    5.30  0.050 / 0.150
G21     289.7          31.7                5.4 +/-    1.13       9.1 +/-    1.13  0.030 / 0.060
G25     209.6          32.4                6.3 +/-    1.47      10.5 +/-    1.47  0.030 / 0.060
G26     315.5          12.9                2.6 +/-    2.61       6.8 +/-    2.61  0.030 / 0.030
G29     347.9          76.1                4.6 +/-    0.68       4.8 +/-    0.68  0.030 / 0.030