PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-20:43:00
G06     180.1          18.3               21.6 +/-    2.02      49.6 +/-    2.02  0.040 / 0.060
G07     143.7          11.0               17.9 +/-    3.96      48.8 +/-    3.96  0.040 / 0.060
G11     45.4           18.1                9.1 +/-    0.86      20.9 +/-    0.86  0.130 / 0.320
G13     254.5          33.4               14.7 +/-    1.90      24.0 +/-    1.90  0.200 / 0.310
G15     287.2          16.4               12.3 +/-    1.25      29.6 +/-    1.25  0.050 / 0.060
G17     290.4          79.4               14.1 +/-    0.69      14.3 +/-    0.69  0.050 / 0.080
G19     239.1          56.4               15.6 +/-    0.45      18.4 +/-    0.45  0.040 / 0.060
G28     38.5           57.1               11.5 +/-    0.59      13.4 +/-    0.59  0.040 / 0.060
G30     147.0          44.4               16.1 +/-    1.23      21.8 +/-    1.23  0.070 / 0.130