Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 2 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)
 02/24/2020   13:33:08   (  70.51, -26.54) 02/24/2020   13:33:48  (  70.51, -26.49)    1.99                40
 02/24/2020   14:23:49   ( -70.38, 141.00) 02/24/2020   14:23:18  ( -70.40, 140.98)    2.29                31
 02/27/2020   05:49:32   (  70.48,  89.41) 02/27/2020   05:50:17  (  70.47,  89.34)    2.99                45
 02/27/2020   06:40:14   ( -70.39,-103.13) 02/27/2020   06:39:46  ( -70.42,-103.11)    2.73                28
 02/29/2020   22:05:56   (  70.51,-154.73) 02/29/2020   22:06:44  (  70.49,-154.76)    2.60                48
 02/29/2020   22:56:38   ( -70.41,  12.75) 02/29/2020   22:56:13  ( -70.44,  12.80)    3.24                25
 03/03/2020   14:22:20   (  70.48, -38.78) 03/03/2020   14:23:12  (  70.50, -38.86)    3.59                52
 03/03/2020   15:13:02   ( -70.38, 128.70) 03/03/2020   15:12:42  ( -70.40, 128.62)    3.48                20
 03/03/2020   16:03:30   (  69.47, -62.62) 03/03/2020   16:02:23  (  69.51, -64.97)   91.80                67
 03/06/2020   06:38:45   (  70.51,  77.08) 03/06/2020   06:39:40  (  70.51,  77.04)    1.54                55
 03/06/2020   07:29:27   ( -70.40,-115.44) 03/06/2020   07:29:10  ( -70.41,-115.48)    1.93                17