Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 7 29.  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)
 07/31/2020   17:03:14   (  70.57, -78.78) 07/31/2020   17:03:51  (  70.57, -78.83)    1.77                37
 07/31/2020   17:53:56   ( -70.48,  88.68) 07/31/2020   17:53:21  ( -70.46,  88.64)    2.51                35
 08/03/2020   09:19:38   (  70.62,  37.05) 08/03/2020   09:20:20  (  70.61,  37.10)    2.53                42
 08/03/2020   10:10:19   ( -70.47,-155.40) 08/03/2020   10:09:50  ( -70.50,-155.43)    2.89                29
 08/06/2020   01:36:01   (  70.62, 152.96) 08/06/2020   01:36:49  (  70.64, 153.03)    3.00                48
 08/06/2020   02:26:43   ( -70.52, -39.57) 08/06/2020   02:26:19  ( -70.53, -39.50)    2.72                24
 08/08/2020   17:52:24   (  70.62, -91.13) 08/08/2020   17:53:19  (  70.61, -91.13)    1.66                55
 08/08/2020   18:43:06   ( -70.53,  76.34) 08/08/2020   18:42:49  ( -70.51,  76.35)    2.34                17
 08/08/2020   19:33:35   (  69.67,-115.03) 08/08/2020   19:32:28  (  69.73,-117.11)   80.78                67
 08/11/2020   10:08:46   (  70.62,  24.78) 08/11/2020   10:09:47  (  70.63,  24.78)    0.55                61
 08/11/2020   10:59:28   ( -70.53,-167.75) 08/11/2020   10:59:17  ( -70.53,-167.73)    0.70                11
 08/11/2020   11:50:02   (  69.94,   0.49) 08/11/2020   11:48:52  (  69.98,  -0.89)   52.71                70