PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-14:58:00
G01     90.6           31.0               10.1 +/-    0.85      17.3 +/-    0.85  0.030 / 0.060
G07     125.0          42.1               10.2 +/-    0.59      14.4 +/-    0.59  0.050 / 0.060
G08     42.2           10.3                8.6 +/-    3.29      24.0 +/-    3.29  0.040 / 0.060
G11     69.3           40.8                9.8 +/-    0.60      14.1 +/-    0.60  0.040 / 0.050
G13     295.1          36.7               11.6 +/-    0.99      17.9 +/-    0.99  0.090 / 0.120
G17     213.0          50.0               13.3 +/-    1.36      16.8 +/-    1.36  0.100 / 0.120
G18     63.8           23.7                8.9 +/-    0.91      18.0 +/-    0.91  0.050 / 0.060
G19     213.2          27.1                9.6 +/-    2.17      17.9 +/-    2.17  0.050 / 0.060
G28     334.1          61.3                9.7 +/-    0.73      10.9 +/-    0.73  0.040 / 0.080
G30     104.7          74.9               10.1 +/-    0.98      10.5 +/-    0.98  0.050 / 0.100