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   (  70.50, -38.81) 03/03/2020   14:23:12  (  70.50, -38.86)    2.15                51
 03/03/2020   15:13:02   ( -70.41, 128.66) 03/03/2020   15:12:41  ( -70.39, 128.60)    2.76                21
 03/03/2020   16:03:29   (  69.43, -62.56) 03/03/2020   16:02:23  (  69.46, -65.05)   96.99                66
 03/06/2020   06:38:45   (  70.52,  77.06) 03/06/2020   06:39:39  (  70.50,  77.02)    2.48                54
 03/06/2020   07:29:27   ( -70.43,-115.47) 03/06/2020   07:29:08  ( -70.45,-115.43)    2.77                19
 03/06/2020   08:19:56   (  69.57,  53.15) 03/06/2020   08:18:49  (  69.57,  50.98)   84.23                67
 03/08/2020   22:55:10   (  70.55,-167.08) 03/08/2020   22:56:06  (  70.55,-167.03)    2.07                56
 03/08/2020   23:45:52   ( -70.45,   0.40) 03/08/2020   23:45:36  ( -70.45,   0.45)    1.75                16
 03/09/2020   00:36:22   (  69.64, 168.94) 03/09/2020   00:35:14  (  69.73, 167.08)   72.45                68
 03/11/2020   15:11:34   (  70.52, -51.13) 03/11/2020   15:12:34  (  70.55, -51.16)    2.93                60
 03/11/2020   16:02:16   ( -70.42, 116.35) 03/11/2020   16:02:04  ( -70.44, 116.32)    3.10                12
 03/11/2020   16:52:49   (  69.78, -75.36) 03/11/2020   16:51:40  (  69.83, -76.90)   59.78                69
 03/14/2020   07:27:58   (  70.55,  64.73) 03/14/2020   07:29:01  (  70.53,  64.70)    1.93                63
 03/14/2020   08:18:40   ( -70.44,-127.78) 03/14/2020   08:18:31  ( -70.43,-127.82)    1.58                 9
 03/14/2020   09:09:15   (  69.91,  40.35) 03/14/2020   09:08:05  (  69.93,  39.11)   47.35                70