PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/29-20:42:50
G01     108.9          24.0               14.7 +/-    1.75      29.4 +/-    1.75  0.040 / 0.040
G07     107.0          54.7               13.8 +/-    0.76      16.5 +/-    0.76  0.030 / 0.040
G08     41.9           21.0                9.0 +/-    3.25      19.3 +/-    3.25  0.200 / 0.340
G09     175.8          16.7               14.4 +/-    2.33      34.4 +/-    2.33  0.180 / 0.380
G11     90.1           42.8               12.7 +/-    0.85      17.7 +/-    0.85  0.060 / 0.150
G13     311.0          27.9                9.4 +/-    2.44      17.2 +/-    2.44  0.080 / 0.160
G17     203.9          36.7               13.5 +/-    1.12      20.8 +/-    1.12  0.040 / 0.060
G18     79.9           23.3               10.6 +/-    1.76      21.6 +/-    1.76  0.050 / 0.060
G28     305.6          58.8               11.8 +/-    0.99      13.6 +/-    0.99  0.030 / 0.020
G30     17.7           77.2               13.3 +/-    0.63      13.6 +/-    0.63  0.030 / 0.030