PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/17-04:57:40
G01     43.3           19.2                3.0 +/-    3.44       6.6 +/-    3.44  0.070 / 0.060
G06     175.4          31.7                6.9 +/-    1.68      11.6 +/-    1.68  0.060 / 0.060
G11     44.3           13.6                3.0 +/-    2.72       7.7 +/-    2.72  0.100 / 0.310
G13     241.9          27.1                5.8 +/-    2.18      10.8 +/-    2.18  0.070 / 0.250
G15     273.7          14.7                2.0 +/-    1.79       5.0 +/-    1.79  0.040 / 0.030
G17     348.4          75.3                5.4 +/-    0.34       5.6 +/-    0.34  0.040 / 0.030
G19     261.4          67.5                5.6 +/-    0.95       6.0 +/-    0.95  0.040 / 0.040
G24     318.3          12.4               -1.7 +/-   13.41      -4.4 +/-   13.41  0.040 / 0.050
G28     50.6           56.0                4.6 +/-    0.49       5.4 +/-    0.49  0.100 / 0.230
G30     153.9          38.5                7.4 +/-    0.96      11.1 +/-    0.96  0.140 / 0.290