Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 8 23.  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)
 08/25/2022   10:08:40   ( -72.42,-153.28) 08/25/2022   10:09:52  ( -72.29,-152.53)   28.88                72
 08/25/2022   10:59:20   (  72.09,  14.69) 08/25/2022   10:59:21  (  72.10,  14.76)    2.94                 1
 08/25/2022   11:50:03   ( -72.00,-177.83) 08/25/2022   11:48:51  ( -71.98,-177.81)    2.10                72
 08/28/2022   01:35:41   (  72.33, 155.16) 08/28/2022   01:36:53  (  72.25, 155.64)   18.29                72
 08/28/2022   02:26:21   ( -72.08, -37.03) 08/28/2022   02:26:24  ( -72.08, -37.03)    0.42                 3
 08/28/2022   03:17:04   (  71.90, 130.61) 08/28/2022   03:15:52  (  71.93, 130.36)    9.37                72
 08/30/2022   17:02:44   ( -72.37, 103.35) 08/30/2022   17:03:56  ( -72.28, 103.94)   21.83                72
 08/30/2022   17:53:25   (  72.10, -88.81) 08/30/2022   17:53:25  (  72.08, -88.78)    2.28                 0
 08/30/2022   18:44:08   ( -71.99,  78.70) 08/30/2022   18:42:54  ( -72.02,  78.75)    3.28                74
 09/02/2022   08:29:46   (  72.30,  51.76) 09/02/2022   08:30:58  (  72.22,  52.07)   13.73                72
 09/02/2022   09:20:27   ( -72.08,-140.52) 09/02/2022   09:20:28  ( -72.11,-140.49)    2.85                 1
 09/02/2022   10:11:09   (  71.87,  27.20) 09/02/2022   10:09:56  (  71.95,  26.88)   14.34                73
 09/04/2022   23:56:49   ( -72.33,  -0.04) 09/04/2022   23:58:01  ( -72.24,   0.35)   16.45                72
 09/05/2022   00:47:30   (  72.07, 167.77) 09/05/2022   00:47:29  (  72.08, 167.72)    2.23                 1