PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-21:28:00
G01     115.9          19.7               16.3 +/-    1.71      36.1 +/-    1.71  0.040 / 0.050
G07     94.5           60.4               14.8 +/-    0.38      16.8 +/-    0.38  0.050 / 0.060
G08     43.3           27.1               11.0 +/-    1.34      20.5 +/-    1.34  0.030 / 0.050
G09     176.8          23.6               17.5 +/-    3.18      35.4 +/-    3.18  0.030 / 0.050
G11     100.3          41.4               15.9 +/-    0.59      22.6 +/-    0.59  0.060 / 0.220
G13     315.8          22.6                9.3 +/-    2.25      19.2 +/-    2.25  0.070 / 0.180
G17     201.4          29.4               16.4 +/-    0.95      29.1 +/-    0.95  0.100 / 0.200
G18     87.5           21.6               14.6 +/-    1.26      30.9 +/-    1.26  0.080 / 0.180
G28     292.6          56.3               12.2 +/-    0.92      14.4 +/-    0.92  0.040 / 0.030
G30     353.7          71.7               13.2 +/-    0.80      13.8 +/-    0.80  0.060 / 0.030