Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 11 4.  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)
 11/04/2019   02:03:24   (  69.59, 147.17) 11/04/2019   02:02:16  (  69.64, 145.37)   70.22                68
 11/06/2019   16:38:36   (  70.45, -72.88) 11/06/2019   16:39:36  (  70.45, -72.89)    0.97                60
 11/06/2019   17:29:18   ( -70.35,  94.60) 11/06/2019   17:29:06  ( -70.33,  94.58)    2.49                12
 11/06/2019   18:19:51   (  69.71, -97.11) 11/06/2019   18:18:42  (  69.73, -98.62)   58.58                69
 11/09/2019   08:55:02   (  70.47,  43.00) 11/09/2019   08:56:04  (  70.48,  43.04)    2.21                62
 11/09/2019   09:45:44   ( -70.36,-149.52) 11/09/2019   09:45:34  ( -70.37,-149.49)    1.43                10
 11/09/2019   10:36:19   (  69.83,  18.61) 11/09/2019   10:35:08  (  69.88,  17.46)   44.55                71
 11/12/2019   01:11:28   (  70.48, 158.87) 11/12/2019   01:12:33  (  70.45, 158.89)    3.26                65
 11/12/2019   02:02:10   ( -70.37, -33.65) 11/12/2019   02:02:03  ( -70.34, -33.64)    3.23                 7
 11/12/2019   02:52:46   (  69.89, 134.40) 11/12/2019   02:51:35  (  69.96, 133.46)   36.87                71
 11/14/2019   17:27:53   (  70.44, -85.18) 11/14/2019   17:29:01  (  70.48, -85.20)    3.52                68
 11/14/2019   18:18:36   ( -70.39,  82.22) 11/14/2019   18:18:31  ( -70.37,  82.28)    2.82                 5
 11/14/2019   19:09:14   (  70.02,-109.89) 11/14/2019   19:08:02  (  70.04,-110.55)   25.22                72
 11/17/2019   09:44:18   (  70.46,  30.68) 11/17/2019   09:45:29  (  70.44,  30.63)    3.07                71
 11/17/2019   10:35:00   ( -70.35,-161.83) 11/17/2019   10:34:59  ( -70.34,-161.89)    2.69                 1
 11/17/2019   11:25:40   (  70.09,   5.90) 11/17/2019   11:24:27  (  70.17,   5.52)   16.95                73