Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 11 6.  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)
 11/06/2019   16:38:37   (  70.48, -72.92) 11/06/2019   16:39:36  (  70.47, -72.85)    2.53                59
 11/06/2019   17:29:18   ( -70.33,  94.64) 11/06/2019   17:29:06  ( -70.35,  94.61)    3.08                12
 11/06/2019   18:19:51   (  69.68, -97.07) 11/06/2019   18:18:42  (  69.76, -98.59)   59.46                69
 11/09/2019   08:55:02   (  70.44,  43.04) 11/09/2019   08:56:05  (  70.45,  42.99)    2.10                63
 11/09/2019   09:45:44   ( -70.34,-149.48) 11/09/2019   09:45:35  ( -70.33,-149.54)    2.14                 9
 11/09/2019   10:36:19   (  69.80,  18.65) 11/09/2019   10:35:09  (  69.85,  17.41)   47.96                70
 11/12/2019   01:11:27   (  70.45, 158.91) 11/12/2019   01:12:32  (  70.47, 158.92)    2.72                65
 11/12/2019   02:02:09   ( -70.34, -33.60) 11/12/2019   02:02:02  ( -70.36, -33.61)    2.26                 7
 11/12/2019   02:52:46   (  69.91, 134.37) 11/12/2019   02:51:35  (  69.93, 133.41)   36.73                71
 11/14/2019   17:27:53   (  70.46, -85.21) 11/14/2019   17:29:01  (  70.44, -85.25)    2.83                68
 11/14/2019   18:18:35   ( -70.35,  82.27) 11/14/2019   18:18:31  ( -70.33,  82.23)    2.92                 4
 11/14/2019   19:09:13   (  69.98,-109.84) 11/14/2019   19:08:01  (  70.06,-110.52)   27.47                72
 11/17/2019   09:44:19   (  70.48,  30.66) 11/17/2019   09:45:29  (  70.46,  30.66)    2.24                70
 11/17/2019   10:35:01   ( -70.37,-161.85) 11/17/2019   10:34:59  ( -70.35,-161.86)    1.62                 2
 11/17/2019   11:25:40   (  70.05,   5.95) 11/17/2019   11:24:28  (  70.13,   5.46)   20.73                72
 11/20/2019   02:00:45   (  70.49, 146.52) 11/20/2019   02:01:57  (  70.47, 146.56)    2.95                72