PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-16:58:00
G01     43.3           19.4                7.3 +/-    2.54      16.3 +/-    2.54  0.040 / 0.060
G06     175.7          33.1               11.0 +/-    1.95      18.0 +/-    1.95  0.040 / 0.070
G13     241.0          25.9                9.8 +/-    2.20      18.8 +/-    2.20  0.190 / 0.400
G15     275.1          13.8                8.4 +/-    0.98      21.4 +/-    0.98  0.130 / 0.270
G17     341.7          75.2               10.5 +/-    0.50      10.9 +/-    0.50  0.030 / 0.030
G19     264.1          67.3               11.4 +/-    1.06      12.3 +/-    1.06  0.030 / 0.030
G24     317.8          14.8                7.5 +/-    1.67      18.8 +/-    1.67  0.090 / 0.210
G28     57.9           53.2                9.3 +/-    1.21      11.3 +/-    1.21  0.150 / 0.260
G30     152.4          30.5               10.9 +/-    1.84      18.9 +/-    1.84  0.040 / 0.040