Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 6 26.  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)
 06/27/2023   14:51:41   ( -73.29, 137.77) 06/27/2023   14:52:53  ( -73.22, 138.23)   16.64                72
 06/27/2023   15:42:23   (  73.06, -54.41) 06/27/2023   15:42:21  (  73.09, -54.40)    2.96                 2
 06/27/2023   16:33:05   ( -72.92, 113.22) 06/27/2023   16:31:51  ( -72.97, 113.00)    9.06                74
 06/30/2023   06:18:48   (  73.17,  86.28) 06/30/2023   06:19:57  (  73.15,  86.33)    2.64                69
 06/30/2023   07:09:31   ( -73.08,-106.20) 06/30/2023   07:09:26  ( -73.09,-106.17)    1.60                 5
 06/30/2023   08:00:09   (  72.65,  62.04) 06/30/2023   07:58:59  (  72.68,  60.69)   44.94                70
 07/02/2023   21:45:56   ( -73.15,  34.59) 07/02/2023   21:47:03  ( -73.13,  34.52)    2.83                67
 07/02/2023   22:36:41   (  73.07,-157.93) 07/02/2023   22:36:29  (  73.09,-157.91)    3.20                12
 07/02/2023   23:27:15   ( -72.52,  10.55) 07/02/2023   23:26:06  ( -72.61,   8.78)   59.79                69
 07/05/2023   13:13:06   (  73.14, -17.16) 07/05/2023   13:14:05  (  73.16, -17.18)    2.14                59
 07/05/2023   14:03:50   ( -73.10, 150.25) 07/05/2023   14:03:34  ( -73.10, 150.34)    2.72                16
 07/05/2023   14:54:20   (  72.26, -40.68) 07/05/2023   14:53:15  (  72.26, -43.62)   99.61                65
 07/08/2023   04:40:14   ( -73.13, -68.88) 07/08/2023   04:41:10  ( -73.14, -68.98)    3.10                56
 07/08/2023   05:31:00   (  73.10,  98.49) 07/08/2023   05:30:36  (  73.10,  98.58)    2.88                24