Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 9 4.  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)
 09/04/2022   23:56:50   ( -72.38,  -0.15) 09/04/2022   23:58:02  ( -72.29,   0.42)   21.69                72
 09/05/2022   00:47:31   (  72.11, 167.69) 09/05/2022   00:47:31  (  72.09, 167.72)    2.23                 0
 09/05/2022   01:38:14   ( -72.01, -24.80) 09/05/2022   01:37:00  ( -72.03, -24.76)    2.58                74
 09/07/2022   15:23:53   (  72.41, -51.95) 09/07/2022   15:25:04  (  72.30, -51.31)   24.91                71
 09/07/2022   16:14:32   ( -72.10, 115.98) 09/07/2022   16:14:36  ( -72.08, 115.92)    3.11                 4
 09/07/2022   17:05:16   (  71.99, -76.50) 09/07/2022   17:04:03  (  71.99, -76.60)    3.38                73
 09/10/2022   06:50:57   ( -72.50,-103.86) 09/10/2022   06:52:08  ( -72.39,-102.92)   33.66                71
 09/10/2022   07:41:35   (  72.09,  64.26) 09/10/2022   07:41:39  (  72.08,  64.17)    3.14                 4
 09/10/2022   08:32:19   ( -72.03,-128.30) 09/10/2022   08:31:08  ( -72.03,-128.30)    0.18                71
 09/12/2022   22:18:00   (  72.50,-155.60) 09/12/2022   22:19:11  (  72.40,-154.67)   33.10                71
 09/12/2022   23:08:38   ( -72.12,  12.46) 09/12/2022   23:08:44  ( -72.13,  12.47)    0.44                 6
 09/12/2022   23:59:22   (  72.03, 179.96) 09/12/2022   23:58:11  (  72.03, 179.94)    0.68                71
 09/15/2022   13:45:05   ( -72.63, 152.40) 09/15/2022   13:46:15  ( -72.49, 153.73)   47.02                70
 09/15/2022   14:35:41   (  72.13, -39.29) 09/15/2022   14:35:47  (  72.12, -39.29)    1.09                 6
 09/15/2022   15:26:25   ( -72.06, 128.17) 09/15/2022   15:25:16  ( -72.07, 128.25)    3.11                69