Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 10 11.  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)
 10/12/2022   00:15:19   ( -72.52,  -4.68) 10/12/2022   00:16:30  ( -72.43,  -3.94)   26.74                71
 10/12/2022   01:05:59   (  72.20, 163.27) 10/12/2022   01:06:00  (  72.18, 163.24)    2.49                 1
 10/12/2022   01:56:42   ( -72.10, -29.23) 10/12/2022   01:55:29  ( -72.11, -29.24)    1.13                73
 10/14/2022   15:42:17   (  72.38, -56.12) 10/14/2022   15:43:29  (  72.34, -55.86)    9.74                72
 10/14/2022   16:32:59   ( -72.23, 111.49) 10/14/2022   16:32:59  ( -72.22, 111.56)    2.81                 0
 10/14/2022   17:23:40   (  71.95, -80.67) 10/14/2022   17:22:28  (  72.02, -81.15)   17.98                72
 10/17/2022   07:09:17   ( -72.36,-107.82) 10/17/2022   07:10:29  ( -72.35,-107.58)    8.13                72
 10/17/2022   08:00:00   (  72.19,  59.84) 10/17/2022   07:59:57  (  72.20,  59.79)    1.89                 3
 10/17/2022   08:50:41   ( -71.99,-132.47) 10/17/2022   08:49:28  ( -72.03,-132.87)   14.41                73
 10/19/2022   22:36:17   (  72.28,-159.38) 10/19/2022   22:37:27  (  72.30,-159.41)    2.62                70
 10/19/2022   23:27:00   ( -72.19,   8.11) 10/19/2022   23:26:57  ( -72.19,   8.02)    3.04                 3
 10/20/2022   00:17:39   (  71.81, 176.15) 10/20/2022   00:16:28  (  71.87, 175.11)   36.92                71
 10/22/2022   14:03:17   ( -72.29, 148.88) 10/22/2022   14:04:26  ( -72.32, 148.88)    3.33                69
 10/22/2022   14:54:02   (  72.21, -43.66) 10/22/2022   14:53:53  (  72.21, -43.67)    0.15                 9