PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/30-18:57:40
G01     40.1           15.1                7.7 +/-    1.59      19.1 +/-    1.59  0.040 / 0.080
G06     175.2          38.9               13.2 +/-    1.67      19.5 +/-    1.67  0.040 / 0.070
G13     235.8          21.8               12.8 +/-    1.94      26.9 +/-    1.94  0.130 / 0.340
G15     269.2          11.9               11.1 +/-    1.18      29.6 +/-    1.18  0.140 / 0.360
G17     1.7            70.3               10.0 +/-    0.60      10.6 +/-    0.60  0.040 / 0.040
G19     281.0          70.2                9.9 +/-    0.69      10.5 +/-    0.69  0.030 / 0.040
G24     315.9          20.2                9.3 +/-    1.37      20.3 +/-    1.37  0.100 / 0.270
G28     67.5           50.2               10.0 +/-    0.58      12.6 +/-    0.58  0.100 / 0.280
G30     153.9          23.7               12.2 +/-    2.16      24.6 +/-    2.16  0.060 / 0.100