Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 3 23.  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)
 03/25/2022   03:39:15   ( -71.80, -56.15) 03/25/2022   03:39:56  ( -71.82, -56.09)    3.39                41
 03/25/2022   04:30:01   (  71.72, 111.30) 03/25/2022   04:29:23  (  71.73, 111.39)    3.18                38
 03/27/2022   19:06:24   (  71.81,-107.94) 03/27/2022   19:06:54  (  71.81,-107.86)    2.61                30
 03/27/2022   19:57:06   ( -71.70,  59.58) 03/27/2022   19:56:24  ( -71.70,  59.58)    0.65                42
 03/30/2022   10:33:30   ( -71.79,-159.65) 03/30/2022   10:33:56  ( -71.78,-159.68)    1.77                26
 03/30/2022   11:24:15   (  71.67,   7.87) 03/30/2022   11:23:23  (  71.67,   7.78)    2.87                52
 04/02/2022   01:10:09   ( -72.64, -20.39) 04/02/2022   01:11:15  ( -72.54, -17.72)   89.59                66
 04/02/2022   02:00:39   (  71.77, 148.62) 04/02/2022   02:00:54  (  71.79, 148.59)    2.96                15
 04/02/2022   02:51:22   ( -71.70, -43.94) 04/02/2022   02:50:24  ( -71.69, -43.96)    1.80                58
 04/04/2022   16:37:11   (  72.27, -71.42) 04/04/2022   16:38:21  (  72.12, -70.23)   43.92                70
 04/04/2022   17:27:46   ( -71.79,  96.83) 04/04/2022   17:27:55  ( -71.80,  96.84)    1.02                 9
 04/04/2022   18:18:31   (  71.69, -95.68) 04/04/2022   18:17:22  (  71.69, -95.70)    0.67                69