PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-23:27:40
G01     42.3           18.2                7.1 +/-    3.30      16.3 +/-    3.30  0.110 / 0.170
G06     178.4          32.4               11.9 +/-    2.00      19.8 +/-    2.00  0.110 / 0.190
G13     239.3          24.3               10.8 +/-    2.23      21.4 +/-    2.23  0.030 / 0.030
G15     272.9          13.2                8.8 +/-    1.05      22.8 +/-    1.05  0.030 / 0.030
G17     359.9          71.9                8.6 +/-    0.36       9.0 +/-    0.36  0.260 / 0.260
G19     268.1          67.5                9.5 +/-    0.76      10.2 +/-    0.76  0.310 / 0.210
G24     316.7          18.4                7.1 +/-    3.42      16.3 +/-    3.42  0.040 / 0.050
G28     63.4           51.0                8.3 +/-    0.46      10.4 +/-    0.46  0.040 / 0.050
G30     153.6          29.8               11.0 +/-    0.82      19.4 +/-    0.82  0.060 / 0.090