PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/02-18:42:50
G01     63.2           31.5               10.9 +/-    0.56      18.5 +/-    0.56  0.110 / 0.470
G07     141.0          25.2               14.5 +/-    0.90      28.2 +/-    0.90  0.120 / 0.400
G11     49.9           26.3               10.3 +/-    1.80      19.6 +/-    1.80  0.050 / 0.110
G13     266.1          36.2               14.3 +/-    1.08      22.2 +/-    1.08  0.040 / 0.140
G15     297.4          15.8               11.3 +/-    3.22      27.5 +/-    3.22  0.040 / 0.040
G17     246.4          72.2               14.0 +/-    0.48      14.6 +/-    0.48  0.030 / 0.040
G18     44.3           14.8                9.5 +/-    1.70      23.8 +/-    1.70  0.040 / 0.040
G19     229.6          46.2               13.2 +/-    0.71      17.5 +/-    0.71  0.040 / 0.050
G28     31.3           57.5               11.5 +/-    0.86      13.3 +/-    0.86  0.040 / 0.050
G30     141.6          54.8               13.4 +/-    0.87      16.0 +/-    0.87  0.040 / 0.060