Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 7 29.  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)
 07/29/2022   23:38:09   ( -72.42,   4.09) 07/29/2022   23:39:20  ( -72.34,   5.16)   37.27                71
 07/30/2022   00:28:48   (  71.99, 172.24) 07/30/2022   00:28:52  (  71.98, 172.17)    2.82                 4
 07/30/2022   01:19:29   ( -71.90, -20.26) 07/30/2022   01:18:20  ( -71.92, -20.31)    2.61                69
 08/01/2022   15:05:12   (  72.36, -47.53) 08/01/2022   15:06:23  (  72.28, -46.71)   29.37                71
 08/01/2022   15:55:49   ( -72.01, 120.48) 08/01/2022   15:55:56  ( -72.00, 120.43)    1.76                 7
 08/01/2022   16:46:35   (  71.94, -72.08) 08/01/2022   16:45:23  (  71.91, -72.08)    3.12                72
 08/04/2022   06:32:16   ( -72.47, -99.48) 08/04/2022   06:33:26  ( -72.40, -98.26)   42.04                70
 08/04/2022   07:22:55   (  72.05,  68.65) 08/04/2022   07:22:58  (  72.04,  68.74)    3.62                 3
 08/04/2022   08:13:37   ( -71.95,-123.83) 08/04/2022   08:12:28  ( -71.92,-123.82)    2.40                69
 08/06/2022   21:59:20   (  72.43,-151.14) 08/06/2022   22:00:30  (  72.32,-150.16)   35.29                70
 08/06/2022   22:49:57   ( -72.06,  16.90) 08/06/2022   22:50:03  ( -72.05,  16.99)    3.33                 6
 08/06/2022   23:40:42   (  71.95,-175.59) 08/06/2022   23:39:30  (  71.95,-175.54)    1.72                72
 08/09/2022   13:26:23   ( -72.48, 157.02) 08/09/2022   13:27:34  ( -72.37, 158.18)   40.71                71
 08/09/2022   14:17:01   (  72.02, -34.78) 08/09/2022   14:17:06  (  72.01, -34.84)    2.92                 5
 08/09/2022   15:07:44   ( -71.96, 132.67) 08/09/2022   15:06:35  ( -71.95, 132.70)    1.18                69