PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-16:58:00
G10     256.7          33.2               10.3 +/-    1.92      16.9 +/-    1.92  0.150 / 0.500
G13     47.6           24.6               11.0 +/-    2.27      21.6 +/-    2.27  0.150 / 0.530
G15     71.4           54.0               11.7 +/-    0.55      14.1 +/-    0.55  0.060 / 0.040
G16     288.3          15.3                7.3 +/-    1.90      18.1 +/-    1.90  0.040 / 0.040
G20     282.3          56.6               11.8 +/-    2.53      13.8 +/-    2.53  0.080 / 0.180
G21     343.2          64.4               12.6 +/-    0.62      13.8 +/-    0.62  0.080 / 0.200
G26     262.1          12.7                9.0 +/-    4.91      23.6 +/-    4.91  0.040 / 0.040
G29     165.6          43.7               13.7 +/-    0.80      18.8 +/-    0.80  0.030 / 0.040