Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 3 2.  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)
 03/03/2020   14:22:21   (  70.53, -38.86) 03/03/2020   14:23:11  (  70.52, -38.83)    1.75                50
 03/03/2020   15:13:02   ( -70.39, 128.68) 03/03/2020   15:12:41  ( -70.41, 128.63)    2.42                21
 03/03/2020   16:03:29   (  69.42, -62.54) 03/03/2020   16:02:23  (  69.48, -65.02)   97.17                66
 03/06/2020   06:38:45   (  70.51,  77.08) 03/06/2020   06:39:39  (  70.52,  77.04)    2.14                54
 03/06/2020   07:29:27   ( -70.41,-115.45) 03/06/2020   07:29:09  ( -70.41,-115.49)    1.43                18
 03/06/2020   08:19:56   (  69.55,  53.17) 03/06/2020   08:18:49  (  69.59,  51.00)   84.27                67
 03/08/2020   22:55:10   (  70.53,-167.06) 03/08/2020   22:56:07  (  70.52,-167.08)    2.03                57
 03/08/2020   23:45:52   ( -70.43,   0.42) 03/08/2020   23:45:37  ( -70.41,   0.39)    2.93                15
 03/09/2020   00:36:23   (  69.68, 168.88) 03/09/2020   00:35:14  (  69.75, 167.10)   68.93                69
 03/11/2020   15:11:34   (  70.56, -51.20) 03/11/2020   15:12:33  (  70.56, -51.13)    2.38                59
 03/11/2020   16:02:16   ( -70.46, 116.29) 03/11/2020   16:02:03  ( -70.46, 116.34)    2.13                13
 03/11/2020   16:52:48   (  69.76, -75.34) 03/11/2020   16:51:39  (  69.85, -76.88)   59.98                69
 03/14/2020   07:27:58   (  70.54,  64.74) 03/14/2020   07:29:01  (  70.55,  64.73)    1.75                63
 03/14/2020   08:18:40   ( -70.43,-127.77) 03/14/2020   08:18:31  ( -70.45,-127.79)    2.54                 9
 03/14/2020   09:09:15   (  69.90,  40.37) 03/14/2020   09:08:05  (  69.95,  39.14)   47.24                70