PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/22-03:42:50
G02     220.8          66.0                8.6 +/-    0.98       9.3 +/-    0.98  0.080 / 0.070
G06     52.3           76.0                6.5 +/-    0.66       6.7 +/-    0.66  0.080 / 0.090
G12     319.0          38.2                3.3 +/-    0.92       4.9 +/-    0.92  0.040 / 0.060
G17     62.3           27.4                2.9 +/-    2.50       5.3 +/-    2.50  0.050 / 0.060
G19     43.8           46.6                4.2 +/-    1.45       5.5 +/-    1.45  0.040 / 0.060
G24     255.5          40.4                5.8 +/-    4.18       8.4 +/-    4.18  0.070 / 0.050
G28     124.8          13.0                6.7 +/-    2.37      17.5 +/-    2.37  0.240 / 0.320