PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/25-22:58:00
G01     49.0           24.7                8.3 +/-    1.80      16.3 +/-    1.80  0.030 / 0.050
G06     180.0          22.5               11.3 +/-    2.23      23.4 +/-    2.23  0.040 / 0.040
G11     44.0           13.3                7.4 +/-    2.49      19.2 +/-    2.49  0.050 / 0.040
G13     248.7          30.4               12.8 +/-    1.27      22.3 +/-    1.27  0.040 / 0.050
G15     282.1          15.6                9.4 +/-    1.30      23.0 +/-    1.30  0.130 / 0.190
G17     326.9          78.5               10.7 +/-    0.40      10.9 +/-    0.40  0.090 / 0.190
G19     247.3          60.5               11.6 +/-    0.46      13.2 +/-    0.46  0.060 / 0.080
G28     48.4           55.0               10.0 +/-    0.95      12.0 +/-    0.95  0.060 / 0.080
G30     150.0          39.8               12.1 +/-    1.51      17.7 +/-    1.51  0.050 / 0.140