PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-14:57:50
G02     58.4           33.2                5.7 +/-    0.56       9.3 +/-    0.56  0.030 / 0.040
G05     63.1           65.4                7.5 +/-    0.49       8.2 +/-    0.49  0.030 / 0.040
G12     182.7          32.7                8.7 +/-    1.40      14.5 +/-    1.40  0.140 / 0.390
G13     127.5          14.1                8.7 +/-    3.28      22.2 +/-    3.28  0.180 / 0.520
G15     163.5          12.2                8.7 +/-    1.86      23.1 +/-    1.86  0.040 / 0.090
G21     270.6          16.0                7.8 +/-    2.19      18.9 +/-    2.19  0.040 / 0.080
G25     239.5          53.0                7.1 +/-    1.21       8.7 +/-    1.21  0.050 / 0.060
G29     327.3          52.5                5.4 +/-    1.07       6.6 +/-    1.07  0.050 / 0.070