Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 4 3.  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)
 04/04/2022   16:37:15   (  72.55, -71.97) 04/04/2022   16:38:22  (  72.45, -69.68)   77.22                67
 04/04/2022   17:27:45   ( -71.82,  96.77) 04/04/2022   17:28:02  ( -71.80,  96.80)    3.06                17
 04/04/2022   18:18:30   (  71.71, -95.71) 04/04/2022   18:17:29  (  71.70, -95.72)    0.65                61
 04/07/2022   08:04:21   ( -72.54,-123.70) 04/07/2022   08:05:28  ( -72.42,-121.50)   74.59                67
 04/07/2022   08:54:54   (  71.82,  45.01) 04/07/2022   08:55:05  (  71.79,  45.02)    2.89                11
 04/07/2022   09:45:36   ( -71.70,-147.45) 04/07/2022   09:44:35  ( -71.68,-147.53)    3.23                61
 04/09/2022   23:31:25   (  72.29,-174.97) 04/09/2022   23:32:35  (  72.18,-173.70)   44.62                70
 04/10/2022   00:22:00   ( -71.81,  -6.72) 04/10/2022   00:22:10  ( -71.81,  -6.72)    0.24                10
 04/10/2022   01:12:45   (  71.71, 160.77) 04/10/2022   01:11:37  (  71.71, 160.75)    0.93                68
 04/12/2022   14:58:30   ( -72.22, 133.41) 04/12/2022   14:59:41  ( -72.13, 134.42)   36.14                71
 04/12/2022   15:49:09   (  71.83, -58.52) 04/12/2022   15:49:12  (  71.81, -58.49)    2.20                 3
 04/12/2022   16:39:51   ( -71.69, 109.04) 04/12/2022   16:38:42  ( -71.70, 108.97)    2.96                69
 04/15/2022   06:25:33   (  72.00,  82.08) 04/15/2022   06:26:45  (  71.94,  82.34)   10.93                72
 04/15/2022   07:16:14   ( -71.81,-110.24) 04/15/2022   07:16:16  ( -71.79,-110.30)    3.08                 2
 04/15/2022   08:06:56   (  71.57,  57.51) 04/15/2022   08:05:44  (  71.63,  57.07)   16.58                72