PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/21-23:12:50
G01     78.9           33.3               11.8 +/-    1.02      19.3 +/-    1.02  0.060 / 0.080
G07     133.2          37.5               14.2 +/-    0.84      21.6 +/-    0.84  0.060 / 0.090
G11     61.0           36.9               10.5 +/-    0.68      16.1 +/-    0.68  0.080 / 0.100
G13     283.7          37.5               11.1 +/-    0.67      16.9 +/-    0.67  0.090 / 0.080
G15     307.8          13.9                9.4 +/-    2.61      23.9 +/-    2.61  0.040 / 0.040
G17     223.6          59.5               13.3 +/-    1.82      15.2 +/-    1.82  0.030 / 0.050
G18     339.1          -16.8               8.6 +/-    3.87      20.5 +/-    3.87  0.080 / 0.060
G19     219.7          35.6               15.5 +/-    2.30      24.4 +/-    2.30  0.060 / 0.050
G28     8.5            60.5               11.0 +/-    1.67      12.5 +/-    1.67  0.050 / 0.080
G30     127.3          65.1               13.2 +/-    0.44      14.4 +/-    0.44  0.050 / 0.090