PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-16:58:10
G07     60.5           66.8               10.9 +/-    0.62      11.7 +/-    0.62  0.170 / 0.380
G08     52.9           41.7               12.0 +/-    1.00      17.0 +/-    1.00  0.160 / 0.380
G09     179.4          40.7               13.3 +/-    2.30      19.1 +/-    2.30  0.070 / 0.080
G11     120.3          34.4               12.2 +/-    1.74      19.5 +/-    1.74  0.070 / 0.080
G17     199.2          11.8                6.2 +/-   22.28      16.7 +/-   22.28  0.050 / 0.090
G18     104.6          15.2               13.0 +/-    1.34      32.2 +/-    1.34  0.050 / 0.090
G23     160.3          9.9                10.0 +/-    1.65      27.9 +/-    1.65  0.030 / 0.040
G27     37.9           10.8                8.7 +/-    1.64      23.8 +/-    1.64  0.040 / 0.040
G28     266.9          47.3               15.7 +/-    1.44      20.4 +/-    1.44  0.100 / 0.250
G30     332.5          60.2               12.5 +/-    1.08      14.2 +/-    1.08  0.090 / 0.230