PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/12-12:28:10
G02     47.0           42.4                8.2 +/-    0.31      11.5 +/-    0.31  0.050 / 0.060
G05     109.1          70.9               13.1 +/-    0.59      13.8 +/-    0.59  0.040 / 0.050
G12     184.3          48.3               14.8 +/-    1.74      19.0 +/-    1.74  0.030 / 0.030
G25     268.4          58.4               12.5 +/-    0.99      14.4 +/-    0.99  0.040 / 0.040
G29     317.1          38.9                8.0 +/-    1.00      11.8 +/-    1.00  0.060 / 0.060