PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-09:57:50
G01     114.0          20.1                5.3 +/-    0.90      11.6 +/-    0.90  0.030 / 0.040
G07     93.3           62.2                5.4 +/-    0.92       6.0 +/-    0.92  0.030 / 0.040
G08     44.4           31.3                3.6 +/-    0.80       6.1 +/-    0.80  0.090 / 0.170
G09     176.0          22.1                6.7 +/-    0.51      14.0 +/-    0.51  0.090 / 0.140
G11     102.4          42.6                7.3 +/-    0.66      10.3 +/-    0.66  0.040 / 0.070
G13     315.0          23.8                2.2 +/-    2.86       4.5 +/-    2.86  0.040 / 0.060
G17     202.9          25.7                4.2 +/-    2.15       8.1 +/-    2.15  0.080 / 0.240
G18     89.1           22.3                4.6 +/-    1.50       9.5 +/-    1.50  0.080 / 0.220
G28     289.6          54.6                5.4 +/-    0.74       6.4 +/-    0.74  0.080 / 0.230
G30     351.9          71.7                4.8 +/-    0.75       5.0 +/-    0.75  0.090 / 0.260