PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-21:12:50
G01     96.4           29.7               11.8 +/-    1.03      20.8 +/-    1.03  0.040 / 0.060
G07     121.0          45.1               11.4 +/-    0.58      15.3 +/-    0.58  0.040 / 0.060
G08     41.7           11.1                8.6 +/-    2.51      23.4 +/-    2.51  0.040 / 0.050
G11     73.8           41.4               10.4 +/-    1.44      14.8 +/-    1.44  0.050 / 0.050
G13     300.4          34.6                9.2 +/-    1.18      14.7 +/-    1.18  0.200 / 0.140
G17     209.5          49.1               11.3 +/-    1.02      14.4 +/-    1.02  0.130 / 0.280
G18     67.1           23.5                9.0 +/-    1.44      18.2 +/-    1.44  0.070 / 0.120
G19     211.6          21.7               11.3 +/-    1.83      23.9 +/-    1.83  0.080 / 0.110
G28     328.7          61.2                8.9 +/-    0.94      10.1 +/-    0.94  0.030 / 0.020
G30     81.9           78.7               10.5 +/-    0.83      10.7 +/-    0.83  0.030 / 0.030