Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 2 21.  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)
 02/21/2020   21:16:43   (  70.50,-142.41) 02/21/2020   21:17:20  (  70.48,-142.41)    1.87                37
 02/21/2020   22:07:24   ( -70.36,  25.11) 02/21/2020   22:06:50  ( -70.37,  25.06)    2.08                34
 02/24/2020   13:33:08   (  70.52, -26.54) 02/24/2020   13:33:48  (  70.50, -26.50)    2.41                40
 02/24/2020   14:23:49   ( -70.38, 141.00) 02/24/2020   14:23:18  ( -70.39, 140.97)    1.64                31
 02/27/2020   05:49:33   (  70.54,  89.33) 02/27/2020   05:50:16  (  70.52,  89.41)    3.61                43
 02/27/2020   06:40:14   ( -70.39,-103.12) 02/27/2020   06:39:46  ( -70.41,-103.12)    2.31                28
 02/29/2020   22:05:57   (  70.51,-154.72) 02/29/2020   22:06:45  (  70.48,-154.77)    2.99                48
 02/29/2020   22:56:39   ( -70.41,  12.75) 02/29/2020   22:56:14  ( -70.43,  12.79)    3.09                25
 03/03/2020   14:22:21   (  70.53, -38.85) 03/03/2020   14:23:12  (  70.50, -38.87)    3.24                51
 03/03/2020   15:13:03   ( -70.42, 128.63) 03/03/2020   15:12:42  ( -70.39, 128.61)    3.28                21