Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 10 31.  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)
 11/02/2020   13:08:32   ( -70.70, 160.00) 11/02/2020   13:09:21  ( -70.72, 160.06)    3.26                49
 11/02/2020   13:59:15   (  70.57, -32.48) 11/02/2020   13:58:49  (  70.57, -32.52)    1.42                26
 11/02/2020   14:49:40   ( -69.59, 136.34) 11/02/2020   14:48:34  ( -69.63, 133.77)   99.58                66
 11/05/2020   05:24:54   ( -70.69, -84.07) 11/05/2020   05:25:50  ( -70.70, -84.09)    0.73                56
 11/05/2020   06:15:37   (  70.57,  83.44) 11/05/2020   06:15:17  (  70.60,  83.41)    2.87                20
 11/05/2020   07:06:06   ( -69.80,-108.04) 11/05/2020   07:04:58  ( -69.88,-109.99)   75.32                68
 11/07/2020   21:41:17   ( -70.74,  31.77) 11/07/2020   21:42:18  ( -70.73,  31.84)    3.38                61
 11/07/2020   22:31:59   (  70.63,-160.74) 11/07/2020   22:31:44  (  70.62,-160.67)    2.51                15
 11/07/2020   23:22:32   ( -70.06,   7.48) 11/07/2020   23:21:21  ( -70.13,   6.24)   47.63                71
 11/10/2020   13:57:38   ( -70.75, 147.68) 11/10/2020   13:58:45  ( -70.75, 147.76)    2.67                67
 11/10/2020   14:48:21   (  70.64, -44.83) 11/10/2020   14:48:12  (  70.64, -44.76)    2.51                 9
 11/10/2020   15:38:58   ( -70.27, 123.07) 11/10/2020   15:37:46  ( -70.32, 122.39)   26.02                72
 11/13/2020   06:14:01   ( -70.80, -96.49) 11/13/2020   06:15:13  ( -70.77, -96.33)    6.85                72
 11/13/2020   07:04:43   (  70.65,  71.08) 11/13/2020   07:04:40  (  70.66,  71.15)    2.74                 3
 11/13/2020   07:55:24   ( -70.49,-121.35) 11/13/2020   07:54:11  ( -70.50,-121.46)    4.39                73