PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-20:42:50
G01     110.7          23.0               12.9 +/-    2.01      26.4 +/-    2.01  0.030 / 0.040
G07     104.2          56.1               12.4 +/-    0.95      14.6 +/-    0.95  0.040 / 0.040
G08     42.1           22.6                8.9 +/-    2.00      18.4 +/-    2.00  0.050 / 0.050
G09     176.1          18.4               14.7 +/-    2.66      33.6 +/-    2.66  0.040 / 0.050
G11     92.7           42.6               12.6 +/-    0.78      17.5 +/-    0.78  0.120 / 0.190
G13     312.3          26.7               10.2 +/-    2.09      19.2 +/-    2.09  0.160 / 0.210
G17     203.2          34.8               12.9 +/-    1.43      20.6 +/-    1.43  0.070 / 0.150
G18     81.9           23.0                9.9 +/-    1.59      20.4 +/-    1.59  0.090 / 0.160
G28     302.2          58.2               10.6 +/-    1.33      12.2 +/-    1.33  0.030 / 0.020
G30     10.6           76.1               10.3 +/-    0.95      10.6 +/-    0.95  0.030 / 0.030