Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 10 22.  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   (  70.43,  67.69) 10/24/2019   07:17:13  (  70.45,  67.73)    2.59                45
 10/24/2019   08:07:10   ( -70.35,-124.85) 10/24/2019   08:06:43  ( -70.34,-124.80)    1.81                27
 10/26/2019   23:32:54   (  70.44,-176.42) 10/26/2019   23:33:42  (  70.46,-176.39)    2.52                48
 10/27/2019   00:23:36   ( -70.34,  -8.95) 10/27/2019   00:23:12  ( -70.35,  -8.92)    1.62                24
 10/29/2019   15:49:20   (  70.44, -60.53) 10/29/2019   15:50:11  (  70.46, -60.51)    1.86                51
 10/29/2019   16:40:02   ( -70.34, 106.94) 10/29/2019   16:39:41  ( -70.35, 106.97)    1.36                21
 10/29/2019   17:30:29   (  69.37, -84.30) 10/29/2019   17:29:23  (  69.41, -86.69)   93.68                66
 11/01/2019   08:05:45   (  70.45,  55.35) 11/01/2019   08:06:39  (  70.45,  55.36)    0.65                54
 11/01/2019   08:56:27   ( -70.34,-137.17) 11/01/2019   08:56:09  ( -70.35,-137.16)    0.64                18
 11/01/2019   09:46:56   (  69.49,  31.43) 11/01/2019   09:45:49  (  69.52,  29.33)   81.92                67
 11/04/2019   00:22:11   (  70.45, 171.23) 11/04/2019   00:23:08  (  70.44, 171.23)    1.28                57
 11/04/2019   01:12:53   ( -70.34, -21.28) 11/04/2019   01:12:38  ( -70.34, -21.29)    0.69                15
 11/04/2019   02:03:24   (  69.60, 147.16) 11/04/2019   02:02:15  (  69.67, 145.42)   67.79                69