PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/05-22:12:50
G01     78.1           33.3               14.4 +/-    1.08      23.5 +/-    1.08  0.180 / 0.190
G07     133.6          37.0               14.8 +/-    1.18      22.6 +/-    1.18  0.240 / 0.410
G11     60.1           36.2               11.4 +/-    1.09      17.7 +/-    1.09  0.060 / 0.100
G13     282.8          37.5               11.3 +/-    0.90      17.2 +/-    0.90  0.050 / 0.090
G15     307.4          14.0                9.4 +/-    2.48      24.0 +/-    2.48  0.040 / 0.060
G17     224.2          59.1               14.3 +/-    2.03      16.4 +/-    2.03  0.040 / 0.070
G18     54.6           21.2               11.3 +/-    4.00      24.1 +/-    4.00  0.030 / 0.040
G19     220.1          35.9               16.1 +/-    2.16      25.2 +/-    2.16  0.030 / 0.070
G28     9.5            60.4               12.5 +/-    1.30      14.2 +/-    1.30  0.070 / 0.060
G30     128.1          65.1               14.2 +/-    0.47      15.4 +/-    0.47  0.060 / 0.080