Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 4 4.  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)   77.52                67
 04/04/2022   17:27:44   ( -71.77,  96.86) 04/04/2022   17:28:02  ( -71.80,  96.80)    3.05                18
 04/04/2022   18:18:30   (  71.71, -95.72) 04/04/2022   18:17:29  (  71.70, -95.72)    0.84                61
 04/07/2022   08:04:21   ( -72.54,-123.71) 04/07/2022   08:05:28  ( -72.43,-121.49)   75.26                67
 04/07/2022   08:54:54   (  71.82,  45.00) 04/07/2022   08:55:05  (  71.80,  45.03)    3.13                11
 04/07/2022   09:45:36   ( -71.71,-147.46) 04/07/2022   09:44:35  ( -71.69,-147.52)    2.98                61
 04/09/2022   23:31:25   (  72.30,-174.99) 04/09/2022   23:32:35  (  72.19,-173.69)   45.64                70
 04/10/2022   00:22:00   ( -71.82,  -6.74) 04/10/2022   00:22:10  ( -71.82,  -6.71)    0.97                10
 04/10/2022   01:12:45   (  71.71, 160.76) 04/10/2022   01:11:37  (  71.72, 160.76)    0.18                68
 04/12/2022   14:58:30   ( -72.24, 133.38) 04/12/2022   14:59:41  ( -72.14, 134.44)   37.72                71
 04/12/2022   15:49:09   (  71.84, -58.54) 04/12/2022   15:49:12  (  71.82, -58.47)    3.20                 3
 04/12/2022   16:39:51   ( -71.71, 109.02) 04/12/2022   16:38:42  ( -71.72, 108.99)    1.64                69
 04/15/2022   06:25:33   (  72.02,  82.05) 04/15/2022   06:26:45  (  71.97,  82.37)   12.67                72
 04/15/2022   07:16:14   ( -71.83,-110.28) 04/15/2022   07:16:16  ( -71.81,-110.27)    2.24                 2
 04/15/2022   08:06:56   (  71.59,  57.48) 04/15/2022   08:05:44  (  71.65,  57.10)   14.65                72
 04/17/2022   21:52:38   ( -71.95,  30.42) 04/17/2022   21:53:50  ( -71.93,  30.54)    4.91                72
 04/17/2022   22:43:22   (  71.82,-162.03) 04/17/2022   22:43:17  (  71.82,-162.00)    0.94                 5