PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-18:57:40
G02     220.7          64.0               10.4 +/-    0.67      11.4 +/-    0.67  0.080 / 0.100
G06     49.4           70.7                8.4 +/-    0.37       8.9 +/-    0.37  0.050 / 0.090
G12     318.9          38.2                6.7 +/-    0.82      10.1 +/-    0.82  0.080 / 0.250
G17     59.5           31.1                8.5 +/-    0.70      14.6 +/-    0.70  0.090 / 0.310
G19     45.1           45.3                7.5 +/-    0.47      10.1 +/-    0.47  0.050 / 0.060
G24     259.6          40.1                9.7 +/-    0.96      14.1 +/-    0.96  0.050 / 0.060
G28     124.0          15.3                9.0 +/-    1.13      22.2 +/-    1.13  0.050 / 0.080