Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 5 14.  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   ( -71.88,-126.97) 05/14/2022   08:24:19  ( -71.86,-127.02)    3.00                41
 05/14/2022   09:14:22   (  71.77,  40.54) 05/14/2022   09:13:46  (  71.77,  40.48)    2.23                36
 05/16/2022   23:50:44   (  71.87,-178.70) 05/16/2022   23:51:21  (  71.87,-178.75)    1.81                37
 05/17/2022   00:41:28   ( -71.80, -11.26) 05/17/2022   00:40:50  ( -71.80, -11.23)    1.22                38
 05/19/2022   15:17:50   ( -71.90, 129.49) 05/19/2022   15:18:25  ( -71.89, 129.52)    1.38                35
 05/19/2022   16:08:34   (  71.79, -63.01) 05/19/2022   16:07:52  (  71.79, -63.00)    0.37                42
 05/22/2022   06:44:55   (  71.90,  77.74) 05/22/2022   06:45:25  (  71.91,  77.81)    3.05                30
 05/22/2022   07:35:38   ( -71.78,-114.72) 05/22/2022   07:34:55  ( -71.80,-114.74)    3.02                43
 05/24/2022   22:12:00   ( -71.88,  26.02) 05/24/2022   22:12:29  ( -71.91,  26.05)    3.00                29
 05/24/2022   23:02:44   (  71.79,-166.49) 05/24/2022   23:01:56  (  71.81,-166.48)    2.45                48
 05/27/2022   13:39:06   (  71.90, -25.76) 05/27/2022   13:39:30  (  71.90, -25.72)    1.59                24
 05/27/2022   14:29:49   ( -71.78, 141.78) 05/27/2022   14:29:00  ( -71.79, 141.73)    2.70                49