PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-00:12:40
G01     40.4           15.5                7.8 +/-    2.40      19.1 +/-    2.40  0.130 / 0.230
G06     178.2          35.9               11.2 +/-    1.27      17.5 +/-    1.27  0.130 / 0.200
G13     236.2          21.9               10.9 +/-    2.36      23.0 +/-    2.36  0.040 / 0.060
G15     269.6          12.0               11.2 +/-    1.54      29.9 +/-    1.54  0.040 / 0.040
G17     7.6            68.8                9.0 +/-    0.53       9.6 +/-    0.53  0.030 / 0.030
G19     278.2          69.2                9.7 +/-    0.47      10.2 +/-    0.47  0.030 / 0.020
G24     315.4          21.6                7.3 +/-    2.89      15.6 +/-    2.89  0.240 / 0.330
G28     68.8           49.2                9.6 +/-    1.10      12.2 +/-    1.10  0.150 / 0.170
G30     154.7          26.4               11.4 +/-    1.51      21.5 +/-    1.51  0.240 / 0.250