Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 5 13.  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)
 05/14/2022   08:23:38   ( -71.86,-126.94) 05/14/2022   08:24:19  ( -71.87,-126.98)    2.04                41
 05/14/2022   09:14:23   (  71.81,  40.47) 05/14/2022   09:13:46  (  71.78,  40.50)    2.62                37
 05/16/2022   23:50:44   (  71.90,-178.77) 05/16/2022   23:51:20  (  71.88,-178.72)    2.54                36
 05/17/2022   00:41:27   ( -71.78, -11.23) 05/17/2022   00:40:50  ( -71.77, -11.29)    2.39                37
 05/19/2022   15:17:49   ( -71.88, 129.53) 05/19/2022   15:18:25  ( -71.86, 129.47)    3.09                36
 05/19/2022   16:08:33   (  71.78, -62.98) 05/19/2022   16:07:52  (  71.76, -63.05)    3.34                41
 05/22/2022   06:44:55   (  71.88,  77.77) 05/22/2022   06:45:26  (  71.89,  77.77)    0.29                31
 05/22/2022   07:35:39   ( -71.81,-114.78) 05/22/2022   07:34:56  ( -71.78,-114.79)    3.69                43
 05/24/2022   22:12:00   ( -71.87,  26.05) 05/24/2022   22:12:30  ( -71.89,  26.01)    2.87                30
 05/24/2022   23:02:44   (  71.77,-166.46) 05/24/2022   23:01:57  (  71.79,-166.52)    2.83                47