PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/23-18:42:40
G03     188.6          19.8               15.1 +/-    2.44      33.4 +/-    2.44  0.080 / 0.200
G07     288.6          36.2               12.1 +/-    1.70      18.7 +/-    1.70  0.080 / 0.170
G08     146.4          25.3               18.0 +/-    0.92      34.9 +/-    0.92  0.030 / 0.040
G09     320.3          60.3               11.7 +/-    0.76      13.2 +/-    0.76  0.030 / 0.040
G16     43.1           39.7               11.2 +/-    0.62      16.4 +/-    0.62  0.040 / 0.040
G23     114.0          77.5               12.8 +/-    0.42      13.1 +/-    0.42  0.030 / 0.040
G26     43.3           11.6               10.1 +/-    3.15      27.2 +/-    3.15  0.040 / 0.130
G27     100.4          33.2               15.5 +/-    0.83      25.4 +/-    0.83  0.040 / 0.100
G30     273.6          14.0               12.0 +/-    2.20      30.6 +/-    2.20  0.120 / 0.190