Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 6 25.  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)
 06/25/2022   14:46:27   (  72.71, -43.87) 06/25/2022   14:47:34  (  72.57, -41.53)   79.00                67
 06/25/2022   15:36:56   ( -71.92, 125.01) 06/25/2022   15:37:14  ( -71.92, 124.92)    3.02                18
 06/25/2022   16:27:41   (  71.82, -67.49) 06/25/2022   16:26:41  (  71.83, -67.59)    3.36                60
 06/28/2022   06:13:29   ( -72.70, -95.59) 06/28/2022   06:14:36  ( -72.63, -93.17)   80.57                67
 06/28/2022   07:04:01   (  71.94,  73.23) 06/28/2022   07:04:14  (  71.96,  73.24)    2.07                13
 06/28/2022   07:54:44   ( -71.87,-119.33) 06/28/2022   07:53:44  ( -71.84,-119.33)    3.52                60
 06/30/2022   21:40:32   (  72.57,-147.07) 06/30/2022   21:41:40  (  72.50,-145.17)   63.76                68
 06/30/2022   22:31:04   ( -71.94,  21.49) 06/30/2022   22:31:18  ( -71.96,  21.48)    2.01                14
 06/30/2022   23:21:49   (  71.84,-171.01) 06/30/2022   23:20:45  (  71.86,-171.04)    3.14                64
 07/03/2022   13:07:36   ( -72.63, 161.07) 07/03/2022   13:08:44  ( -72.50, 163.06)   67.68                68
 07/03/2022   13:58:10   (  71.96, -30.30) 07/03/2022   13:58:19  (  71.97, -30.25)    2.10                 9
 07/03/2022   14:48:52   ( -71.85, 137.23) 07/03/2022   14:47:49  ( -71.86, 137.19)    1.98                63
 07/06/2022   04:34:38   (  72.45, 109.68) 07/06/2022   04:35:48  (  72.34, 111.01)   46.43                70
 07/06/2022   05:25:13   ( -71.98, -82.07) 07/06/2022   05:25:23  ( -71.96, -82.03)    2.53                10
 07/06/2022   06:15:58   (  71.87,  85.44) 07/06/2022   06:14:50  (  71.86,  85.44)    1.71                68
 07/08/2022   20:01:40   ( -72.47,  57.91) 07/08/2022   20:02:50  ( -72.37,  59.31)   48.40                70
 07/08/2022   20:52:17   (  71.96,-133.78) 07/08/2022   20:52:23  (  71.95,-133.80)    1.79                 6
 07/08/2022   21:43:00   ( -71.89,  33.66) 07/08/2022   21:41:52  ( -71.89,  33.74)    2.76                68