PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-17:13:00
G01     47.5           23.5                3.4 +/-   36.91       6.9 +/-   36.91  0.070 / 0.110
G06     175.8          29.7                6.8 +/-   24.59      11.9 +/-   24.59  0.060 / 0.090
G11     43.9           12.1                4.7 +/-   35.92      12.4 +/-   35.92  0.190 / 0.310
G13     247.0          28.5                4.9 +/-   35.51       8.9 +/-   35.51  0.220 / 0.390
G15     282.5          14.6                5.2 +/-   38.36      13.1 +/-   38.36  0.070 / 0.160
G17     326.5          77.4                4.0 +/-   11.06       4.1 +/-   11.06  0.080 / 0.130
G19     250.4          60.0                2.4 +/-   37.12       2.7 +/-   37.12  0.200 / 0.390
G24     318.6          11.7              -15.7 +/-   25.67     -42.2 +/-   25.67  0.030 / 0.110
G28     57.4           51.6                1.7 +/-   37.58       2.1 +/-   37.58  0.040 / 0.070
G30     151.4          38.4                5.4 +/-   37.88       8.0 +/-   37.88  0.060 / 0.210