PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/27-11:58:00
G02     58.2           32.5                3.5 +/-    1.19       5.8 +/-    1.19  0.030 / 0.030
G05     65.5           66.0                4.1 +/-    0.36       4.5 +/-    0.36  0.030 / 0.030
G12     182.4          33.9                6.1 +/-    1.55       9.9 +/-    1.55  0.040 / 0.090
G13     128.8          12.9                4.2 +/-    2.30      11.0 +/-    2.30  0.050 / 0.090
G15     163.0          11.7                4.5 +/-    1.90      12.1 +/-    1.90  0.050 / 0.080
G21     269.6          15.7                5.9 +/-    2.44      14.4 +/-    2.44  0.060 / 0.090
G25     241.2          54.0                5.6 +/-    1.05       6.8 +/-    1.05  0.040 / 0.050
G29     326.0          50.7                3.9 +/-    0.79       4.9 +/-    0.79  0.040 / 0.050