PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-05:58:00
G01     76.4           33.2                3.6 +/-    0.69       5.9 +/-    0.69  0.050 / 0.050
G07     134.5          34.8                6.6 +/-    1.65      10.6 +/-    1.65  0.040 / 0.050
G11     57.9           33.9                2.5 +/-    0.49       4.1 +/-    0.49  0.050 / 0.070
G13     282.1          37.2                4.9 +/-    1.33       7.5 +/-    1.33  0.040 / 0.060
G15     306.2          14.6                1.8 +/-    1.47       4.6 +/-    1.47  0.110 / 0.330
G17     226.4          65.8                7.2 +/-    1.73       7.8 +/-    1.73  0.090 / 0.310
G19     220.9          38.9                7.0 +/-    1.46      10.3 +/-    1.46  0.030 / 0.040
G28     12.4           60.0                2.8 +/-    0.69       3.2 +/-    0.69  0.030 / 0.040
G30     129.3          64.7                5.1 +/-    0.78       5.6 +/-    0.78  0.070 / 0.100