PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/16-05:58:00
G01     71.9           33.0                4.9 +/-    1.36       8.1 +/-    1.36  0.040 / 0.050
G07     136.8          31.4                8.0 +/-    0.75      13.6 +/-    0.75  0.050 / 0.040
G11     54.9           31.5                4.8 +/-    1.07       8.1 +/-    1.07  0.030 / 0.020
G13     277.2          37.1                6.5 +/-    1.13       9.9 +/-    1.13  0.030 / 0.020
G15     302.9          15.5                2.8 +/-    1.03       6.8 +/-    1.03  0.050 / 0.070
G17     232.5          69.2                8.7 +/-    0.57       9.3 +/-    0.57  0.060 / 0.070
G19     223.7          42.5                9.6 +/-    1.91      13.5 +/-    1.91  0.100 / 0.210
G28     19.3           59.2                5.7 +/-    2.10       6.5 +/-    2.10  0.110 / 0.200
G30     134.0          60.9                9.1 +/-    0.40      10.3 +/-    0.40  0.070 / 0.090