Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 5 15.  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)
 05/16/2022   23:50:45   (  71.90,-178.77) 05/16/2022   23:51:21  (  71.88,-178.73)    3.07                36
 05/17/2022   00:41:27   ( -71.79, -11.24) 05/17/2022   00:40:49  ( -71.81, -11.21)    3.31                38
 05/19/2022   15:17:49   ( -71.88, 129.52) 05/19/2022   15:18:24  ( -71.90, 129.54)    1.65                35
 05/19/2022   16:08:33   (  71.78, -62.97) 05/19/2022   16:07:51  (  71.80, -62.98)    2.63                42
 05/22/2022   06:44:55   (  71.88,  77.77) 05/22/2022   06:45:26  (  71.86,  77.73)    2.45                31
 05/22/2022   07:35:39   ( -71.81,-114.78) 05/22/2022   07:34:55  ( -71.81,-114.74)    1.73                44
 05/24/2022   22:12:01   ( -71.92,  25.96) 05/24/2022   22:12:29  ( -71.91,  26.04)    3.29                28
 05/24/2022   23:02:45   (  71.82,-166.55) 05/24/2022   23:01:56  (  71.81,-166.48)    2.56                49
 05/27/2022   13:39:06   (  71.88, -25.72) 05/27/2022   13:39:30  (  71.89, -25.73)    1.08                24
 05/27/2022   14:29:50   ( -71.81, 141.73) 05/27/2022   14:29:00  ( -71.78, 141.71)    2.80                50