PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-15:43:10
G01     71.7           32.5                8.0 +/-    0.56      13.2 +/-    0.56  0.070 / 0.130
G07     136.1          28.1                8.8 +/-    1.85      16.0 +/-    1.85  0.060 / 0.140
G11     54.2           32.0                5.2 +/-    0.81       8.8 +/-    0.81  0.040 / 0.060
G13     275.3          38.6               12.8 +/-    1.06      19.1 +/-    1.06  0.040 / 0.060
G15     303.4          15.1                7.1 +/-    3.44      17.6 +/-    3.44  0.070 / 0.160
G17     228.6          65.6               11.7 +/-    0.72      12.7 +/-    0.72  0.060 / 0.140
G18     49.2           18.3                5.7 +/-    0.76      13.1 +/-    0.76  0.060 / 0.080
G19     222.2          41.7               13.2 +/-    0.61      18.6 +/-    0.61  0.060 / 0.080
G28     5.1            61.1                8.0 +/-    0.56       9.1 +/-    0.56  0.030 / 0.040
G30     134.1          60.9                9.9 +/-    0.96      11.2 +/-    0.96  0.030 / 0.040