Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 5 7.  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)
 05/09/2022   01:29:27   ( -71.90, -23.51) 05/09/2022   01:30:11  ( -71.90, -23.42)    3.15                44
 05/09/2022   02:20:11   (  71.79, 144.01) 05/09/2022   02:19:38  (  71.81, 144.07)    3.22                33
 05/11/2022   16:56:33   (  71.87, -75.21) 05/11/2022   16:57:14  (  71.87, -75.22)    0.23                41
 05/11/2022   17:47:17   ( -71.81,  92.23) 05/11/2022   17:46:43  ( -71.81,  92.31)    3.08                34
 05/14/2022   08:23:38   ( -71.89,-127.00) 05/14/2022   08:24:18  ( -71.86,-127.00)    3.43                40
 05/14/2022   09:14:22   (  71.79,  40.50) 05/14/2022   09:13:45  (  71.76,  40.47)    3.33                37
 05/16/2022   23:50:44   (  71.89,-178.74) 05/16/2022   23:51:19  (  71.90,-178.69)    2.25                35
 05/17/2022   00:41:28   ( -71.81, -11.29) 05/17/2022   00:40:49  ( -71.79, -11.24)    2.91                39
 05/19/2022   15:17:49   ( -71.86, 129.56) 05/19/2022   15:18:24  ( -71.86, 129.48)    2.81                35
 05/19/2022   16:08:34   (  71.82, -63.05) 05/19/2022   16:07:50  (  71.81, -62.96)    3.17                44