Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 10 24.  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)
 10/24/2019   07:16:28   (  70.42,  67.72) 10/24/2019   07:17:14  (  70.42,  67.68)    1.69                46
 10/24/2019   08:07:10   ( -70.33,-124.82) 10/24/2019   08:06:44  ( -70.31,-124.85)    2.50                26
 10/26/2019   23:32:53   (  70.42,-176.40) 10/26/2019   23:33:42  (  70.43,-176.44)    1.43                49
 10/27/2019   00:23:35   ( -70.33,  -8.94) 10/27/2019   00:23:12  ( -70.32,  -8.97)    2.07                23
 10/29/2019   15:49:19   (  70.43, -60.52) 10/29/2019   15:50:11  (  70.43, -60.56)    1.64                52
 10/29/2019   16:40:01   ( -70.34, 106.95) 10/29/2019   16:39:41  ( -70.32, 106.92)    2.34                20
 10/29/2019   17:30:28   (  69.37, -84.29) 10/29/2019   17:29:22  (  69.44, -86.66)   93.08                66
 11/01/2019   08:05:45   (  70.45,  55.35) 11/01/2019   08:06:40  (  70.42,  55.32)    3.10                55
 11/01/2019   08:56:27   ( -70.34,-137.17) 11/01/2019   08:56:10  ( -70.31,-137.20)    3.34                17
 11/01/2019   09:46:56   (  69.49,  31.43) 11/01/2019   09:45:49  (  69.54,  29.36)   80.81                67
 11/04/2019   00:22:11   (  70.46, 171.22) 11/04/2019   00:23:08  (  70.47, 171.27)    1.88                57
 11/04/2019   01:12:53   ( -70.35, -21.29) 11/04/2019   01:12:38  ( -70.36, -21.25)    1.88                15
 11/04/2019   02:03:24   (  69.61, 147.15) 11/04/2019   02:02:16  (  69.65, 145.38)   68.55                68
 11/06/2019   16:38:36   (  70.48, -72.91) 11/06/2019   16:39:36  (  70.45, -72.87)    2.99                60
 11/06/2019   17:29:18   ( -70.37,  94.58) 11/06/2019   17:29:06  ( -70.35,  94.61)    1.94                12
 11/06/2019   18:19:51   (  69.73, -97.14) 11/06/2019   18:18:41  (  69.80, -98.53)   53.89                70