PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-02:27:40
G10     261.5          34.7               13.6 +/-    1.28      21.6 +/-    1.28  0.130 / 0.520
G13     44.7           22.3                9.9 +/-    2.38      20.7 +/-    2.38  0.180 / 0.460
G15     67.2           53.7               11.1 +/-    0.57      13.4 +/-    0.57  0.140 / 0.250
G16     282.8          13.8                8.8 +/-    0.95      22.6 +/-    0.95  0.140 / 0.220
G20     283.2          54.6               13.0 +/-    1.90      15.5 +/-    1.90  0.040 / 0.040
G21     349.7          67.9               12.8 +/-    0.79      13.7 +/-    0.79  0.040 / 0.040
G24     123.8          11.2               12.9 +/-    3.63      35.1 +/-    3.63  0.180 / 0.250
G27     320.7          14.7                7.5 +/-    2.36      18.7 +/-    2.36  0.260 / 0.300
G29     167.7          37.7               12.6 +/-    1.15      19.1 +/-    1.15  0.030 / 0.040