PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-00:27:50
G02     38.1           51.2               11.7 +/-    1.15      14.5 +/-    1.15  0.040 / 0.040
G05     125.4          66.1               14.2 +/-    0.33      15.4 +/-    0.33  0.040 / 0.040
G06     56.9           11.3                9.3 +/-    2.12      25.2 +/-    2.12  0.030 / 0.030
G12     192.4          61.4               15.3 +/-    0.57      17.1 +/-    0.57  0.040 / 0.030
G25     289.3          55.8                9.3 +/-    1.49      11.0 +/-    1.49  0.040 / 0.040
G29     310.4          30.9               12.9 +/-    1.22      22.1 +/-    1.22  0.040 / 0.040