PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/30-19:58:10
G01     124.7          13.0               12.4 +/-    2.20      32.4 +/-    2.20  0.030 / 0.030
G07     72.5           65.6               10.7 +/-    0.49      11.6 +/-    0.49  0.030 / 0.030
G08     48.2           36.4                9.0 +/-    1.18      13.9 +/-    1.18  0.090 / 0.310
G09     178.4          34.6               11.9 +/-    0.99      19.0 +/-    0.99  0.130 / 0.330
G11     113.8          37.3               13.0 +/-    0.98      19.7 +/-    0.98  0.110 / 0.120
G13     320.1          14.3                7.6 +/-    4.01      19.3 +/-    4.01  0.100 / 0.130
G17     199.4          18.3               12.7 +/-    0.89      29.0 +/-    0.89  0.120 / 0.120
G18     98.7           17.7               12.1 +/-    2.51      28.2 +/-    2.51  0.110 / 0.090
G28     275.3          51.1               11.6 +/-    3.52      14.4 +/-    3.52  0.030 / 0.040
G30     337.1          63.4                9.7 +/-    0.74      10.7 +/-    0.74  0.030 / 0.040