PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-01:58:00
G07     1.9            66.3                4.1 +/-    0.67       4.4 +/-    0.67  0.050 / 0.060
G08     69.9           49.7                4.0 +/-    0.32       5.0 +/-    0.32  0.050 / 0.060
G09     175.2          51.6                6.2 +/-    0.60       7.7 +/-    0.60  0.030 / 0.040
G11     138.5          24.0                9.3 +/-    1.90      18.7 +/-    1.90  0.030 / 0.030
G23     159.7          25.9                5.3 +/-    2.05      10.2 +/-    2.05  0.050 / 0.030
G27     43.1           21.3                2.9 +/-    2.41       6.2 +/-    2.41  0.040 / 0.050
G28     247.7          33.5                3.3 +/-    1.70       5.3 +/-    1.70  0.120 / 0.190
G30     312.1          43.1                4.5 +/-    0.84       6.2 +/-    0.84  0.130 / 0.230