Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 10 26.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 10/26/2019   23:32:54   (  70.46,-176.46) 10/26/2019   23:33:42  (  70.44,-176.42)    2.50                48
 10/27/2019   00:23:35   ( -70.32,  -8.91) 10/27/2019   00:23:12  ( -70.33,  -8.95)    1.79                23
 10/29/2019   15:49:20   (  70.47, -60.58) 10/29/2019   15:50:11  (  70.44, -60.54)    3.29                51
 10/29/2019   16:40:01   ( -70.32, 106.97) 10/29/2019   16:39:41  ( -70.33, 106.94)    1.88                20
 10/29/2019   17:30:29   (  69.40, -84.34) 10/29/2019   17:29:22  (  69.46, -86.64)   90.10                67
 11/01/2019   08:05:45   (  70.43,  55.38) 11/01/2019   08:06:40  (  70.44,  55.34)    2.12                55
 11/01/2019   08:56:27   ( -70.32,-137.14) 11/01/2019   08:56:10  ( -70.33,-137.19)    1.71                17
 11/01/2019   09:46:57   (  69.52,  31.38) 11/01/2019   09:45:49  (  69.56,  29.38)   77.93                68
 11/04/2019   00:22:10   (  70.44, 171.26) 11/04/2019   00:23:08  (  70.43, 171.21)    1.83                58
 11/04/2019   01:12:52   ( -70.33, -21.26) 11/04/2019   01:12:38  ( -70.32, -21.31)    2.10                14
 11/04/2019   02:03:24   (  69.64, 147.10) 11/04/2019   02:02:15  (  69.66, 145.40)   65.80                69
 11/06/2019   16:38:36   (  70.45, -72.87) 11/06/2019   16:39:36  (  70.48, -72.84)    2.85                60
 11/06/2019   17:29:18   ( -70.34,  94.61) 11/06/2019   17:29:06  ( -70.37,  94.64)    3.14                12
 11/06/2019   18:19:51   (  69.71, -97.10) 11/06/2019   18:18:42  (  69.76, -98.58)   57.23                69