Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 2 15.  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)
 02/16/2020   12:43:54   (  70.48, -14.20) 02/16/2020   12:44:24  (  70.46, -14.19)    2.92                30
 02/16/2020   13:34:35   ( -70.36, 153.32) 02/16/2020   13:33:54  ( -70.34, 153.28)    2.26                41
 02/19/2020   05:00:19   (  70.50, 101.68) 02/19/2020   05:00:52  (  70.49, 101.73)    2.42                33
 02/19/2020   05:51:00   ( -70.37, -90.79) 02/19/2020   05:50:22  ( -70.38, -90.80)    0.95                38
 02/21/2020   21:16:43   (  70.46,-142.36) 02/21/2020   21:17:21  (  70.46,-142.43)    2.59                38
 02/21/2020   22:07:25   ( -70.38,  25.09) 02/21/2020   22:06:51  ( -70.35,  25.05)    3.30                34
 02/24/2020   13:33:08   (  70.48, -26.49) 02/24/2020   13:33:49  (  70.49, -26.51)    1.12                41
 02/24/2020   14:23:50   ( -70.39, 140.98) 02/24/2020   14:23:19  ( -70.38, 140.97)    0.99                31
 02/27/2020   05:49:32   (  70.50,  89.39) 02/27/2020   05:50:16  (  70.51,  89.40)    1.22                44
 02/27/2020   06:40:14   ( -70.40,-103.14) 02/27/2020   06:39:46  ( -70.41,-103.12)    1.03                28