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   (  70.43,-176.41) 10/26/2019   23:33:43  (  70.42,-176.45)    2.22                49
 10/27/2019   00:23:36   ( -70.34,  -8.95) 10/27/2019   00:23:12  ( -70.36,  -8.91)    2.35                24
 10/29/2019   15:49:19   (  70.44, -60.53) 10/29/2019   15:50:11  (  70.42, -60.57)    2.67                52
 10/29/2019   16:40:01   ( -70.34, 106.94) 10/29/2019   16:39:40  ( -70.36, 106.98)    2.51                21
 10/29/2019   17:30:28   (  69.37, -84.29) 10/29/2019   17:29:22  (  69.43, -86.68)   93.46                66
 11/01/2019   08:05:45   (  70.44,  55.36) 11/01/2019   08:06:39  (  70.47,  55.39)    3.22                54
 11/01/2019   08:56:27   ( -70.34,-137.17) 11/01/2019   08:56:09  ( -70.36,-137.14)    2.18                18
 11/01/2019   09:46:56   (  69.48,  31.44) 11/01/2019   09:45:49  (  69.54,  29.35)   81.48                67
 11/04/2019   00:22:11   (  70.45, 171.24) 11/04/2019   00:23:08  (  70.46, 171.26)    1.70                57
 11/04/2019   01:12:53   ( -70.34, -21.28) 11/04/2019   01:12:38  ( -70.36, -21.27)    1.30                15
 11/04/2019   02:03:24   (  69.60, 147.16) 11/04/2019   02:02:16  (  69.64, 145.37)   69.57                68
 11/06/2019   16:38:37   (  70.46, -72.88) 11/06/2019   16:39:37  (  70.45, -72.88)    0.61                60
 11/06/2019   17:29:19   ( -70.35,  94.60) 11/06/2019   17:29:07  ( -70.35,  94.60)    0.17                12
 11/06/2019   18:19:52   (  69.71, -97.11) 11/06/2019   18:18:43  (  69.74, -98.61)   57.75                69
 11/09/2019   08:55:02   (  70.47,  42.99) 11/09/2019   08:56:05  (  70.44,  42.99)    2.98                63
 11/09/2019   09:45:44   ( -70.36,-149.52) 11/09/2019   09:45:35  ( -70.34,-149.53)    2.19                 9
 11/09/2019   10:36:19   (  69.83,  18.61) 11/09/2019   10:35:08  (  69.90,  17.48)   43.69                71