Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 3 24.  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)
 03/25/2020   00:33:37   (  70.70, 168.10) 03/25/2020   00:34:49  (  70.63, 168.35)   11.83                72
 03/25/2020   01:24:17   ( -70.49, -24.25) 03/25/2020   01:24:20  ( -70.46, -24.26)    3.21                 3
 03/25/2020   02:15:00   (  70.38, 143.24) 03/25/2020   02:13:47  (  70.36, 143.23)    2.13                73
 03/27/2020   16:50:04   (  70.84, -76.23) 03/27/2020   16:51:15  (  70.71, -75.65)   25.59                71
 03/27/2020   17:40:41   ( -70.48,  91.68) 03/27/2020   17:40:47  ( -70.49,  91.66)    2.11                 6
 03/27/2020   18:31:24   (  70.36,-100.83) 03/27/2020   18:30:14  (  70.38,-100.85)    2.69                70
 03/30/2020   09:06:30   (  70.93,  39.53) 03/30/2020   09:07:41  (  70.79,  40.35)   33.93                71
 03/30/2020   09:57:06   ( -70.51,-152.47) 03/30/2020   09:57:14  ( -70.52,-152.42)    2.00                 8
 03/30/2020   10:47:49   (  70.40,  15.02) 03/30/2020   10:46:41  (  70.41,  15.06)    1.54                68
 04/02/2020   01:22:56   (  71.02, 155.28) 04/02/2020   01:24:06  (  70.91, 156.42)   43.27                70
 04/02/2020   02:13:30   ( -70.50, -36.55) 04/02/2020   02:13:42  ( -70.48, -36.59)    2.47                12
 04/02/2020   03:04:13   (  70.39, 130.94) 04/02/2020   03:03:09  (  70.37, 130.88)    3.28                64
 04/04/2020   17:39:21   (  71.11, -88.98) 04/04/2020   17:40:30  (  71.03, -87.51)   53.71                69
 04/04/2020   18:29:53   ( -70.49,  79.38) 04/04/2020   18:30:08  ( -70.50,  79.31)    2.71                15
 04/04/2020   19:20:37   (  70.43,-113.22) 04/04/2020   19:19:34  (  70.43,-113.14)    2.94                63