Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 11 7.  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)
 11/09/2019   08:55:02   (  70.43,  43.05) 11/09/2019   08:56:05  (  70.45,  43.00)    3.14                63
 11/09/2019   09:45:44   ( -70.33,-149.47) 11/09/2019   09:45:35  ( -70.34,-149.53)    2.40                 9
 11/09/2019   10:36:19   (  69.79,  18.66) 11/09/2019   10:35:09  (  69.85,  17.42)   48.12                70
 11/12/2019   01:11:27   (  70.44, 158.93) 11/12/2019   01:12:33  (  70.43, 158.85)    3.23                66
 11/12/2019   02:02:10   ( -70.39, -33.68) 11/12/2019   02:02:02  ( -70.37, -33.60)    3.42                 8
 11/12/2019   02:52:46   (  69.91, 134.38) 11/12/2019   02:51:35  (  69.94, 133.42)   36.74                71
 11/14/2019   17:27:53   (  70.45, -85.20) 11/14/2019   17:29:01  (  70.45, -85.23)    1.19                68
 11/14/2019   18:18:35   ( -70.35,  82.29) 11/14/2019   18:18:31  ( -70.35,  82.24)    1.53                 4
 11/14/2019   19:09:13   (  69.97,-109.82) 11/14/2019   19:08:01  (  70.07,-110.50)   28.14                72
 11/17/2019   09:44:19   (  70.47,  30.67) 11/17/2019   09:45:29  (  70.47,  30.68)    0.82                70
 11/17/2019   10:35:01   ( -70.36,-161.84) 11/17/2019   10:34:59  ( -70.37,-161.84)    1.30                 2
 11/17/2019   11:25:41   (  70.09,   5.89) 11/17/2019   11:24:28  (  70.15,   5.49)   16.46                73
 11/20/2019   02:00:46   (  70.53, 146.46) 11/20/2019   02:01:57  (  70.49, 146.59)    6.79                71
 11/20/2019   02:51:27   ( -70.37, -45.96) 11/20/2019   02:51:27  ( -70.39, -45.93)    2.36                 0
 11/20/2019   03:42:08   (  70.16, 121.68) 11/20/2019   03:40:55  (  70.22, 121.47)   10.35                73