Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 8 17.  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)
 08/17/2022   11:47:32   (  72.41,   1.95) 08/17/2022   11:48:43  (  72.30,   2.76)   29.88                71
 08/17/2022   12:38:10   ( -72.08, 169.91) 08/17/2022   12:38:15  ( -72.07, 169.98)    2.58                 5
 08/17/2022   13:28:55   (  71.98, -22.60) 08/17/2022   13:27:42  (  71.98, -22.53)    2.39                73
 08/20/2022   03:14:35   ( -72.45, -49.87) 08/20/2022   03:15:46  ( -72.36, -48.90)   34.46                71
 08/20/2022   04:05:14   (  72.06, 118.21) 08/20/2022   04:05:17  (  72.05, 118.20)    1.02                 3
 08/20/2022   04:55:57   ( -71.98, -74.32) 08/20/2022   04:54:46  ( -71.99, -74.28)    1.68                71
 08/22/2022   18:41:37   (  72.39,-101.50) 08/22/2022   18:42:48  (  72.27,-100.81)   27.11                71
 08/22/2022   19:32:15   ( -72.05,  66.49) 08/22/2022   19:32:20  ( -72.05,  66.43)    2.14                 5
 08/22/2022   20:23:00   (  71.97,-126.05) 08/22/2022   20:21:47  (  71.95,-126.09)    2.43                73
 08/25/2022   10:08:40   ( -72.43,-153.30) 08/25/2022   10:09:51  ( -72.31,-152.49)   30.18                71
 08/25/2022   10:59:19   (  72.05,  14.75) 08/25/2022   10:59:21  (  72.05,  14.69)    2.07                 2
 08/25/2022   11:50:03   ( -72.01,-177.85) 08/25/2022   11:48:50  ( -72.00,-177.78)    2.70                73
 08/28/2022   01:35:42   (  72.34, 155.14) 08/28/2022   01:36:53  (  72.25, 155.65)   19.87                71
 08/28/2022   02:26:22   ( -72.08, -37.05) 08/28/2022   02:26:24  ( -72.09, -37.01)    1.43                 2
 08/28/2022   03:17:05   (  71.92, 130.58) 08/28/2022   03:15:52  (  71.93, 130.36)    7.93                73
 08/30/2022   17:02:45   ( -72.37, 103.35) 08/30/2022   17:03:56  ( -72.28, 103.93)   21.98                71
 08/30/2022   17:53:25   (  72.05, -88.73) 08/30/2022   17:53:25  (  72.07, -88.80)    2.91                 0