PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-16:43:10
G01     45.0           21.1                5.6 +/-    1.32      12.0 +/-    1.32  0.150 / 0.400
G06     176.2          30.4               12.6 +/-    1.61      21.8 +/-    1.61  0.170 / 0.310
G11     43.5           10.2                6.5 +/-    1.69      18.0 +/-    1.69  0.040 / 0.060
G13     243.4          27.6               12.8 +/-    1.78      23.6 +/-    1.78  0.040 / 0.070
G15     277.5          14.5               10.3 +/-    1.70      25.9 +/-    1.70  0.140 / 0.500
G17     331.4          76.7               10.3 +/-    0.83      10.6 +/-    0.83  0.180 / 0.570
G19     257.8          65.6                9.7 +/-    1.19      10.5 +/-    1.19  0.080 / 0.170
G24     318.3          12.6                5.8 +/-    3.20      15.3 +/-    3.20  0.070 / 0.200
G28     53.8           54.2                9.1 +/-    0.34      10.9 +/-    0.34  0.040 / 0.040
G30     151.5          33.2               11.0 +/-    1.32      18.0 +/-    1.32  0.030 / 0.040