Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 1 18.  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)
 01/18/2022   04:43:29   (  71.10, 108.51) 01/18/2022   04:42:19  (  71.16, 107.41)   40.34                70
 01/20/2022   18:29:16   ( -71.62,  81.19) 01/20/2022   18:30:19  ( -71.63,  81.14)    1.98                63
 01/20/2022   19:20:01   (  71.56,-111.40) 01/20/2022   19:19:46  (  71.54,-111.37)    3.07                15
 01/20/2022   20:10:34   ( -70.93,  57.03) 01/20/2022   20:09:25  ( -70.93,  55.29)   63.38                69
 01/23/2022   09:56:26   (  71.62,  29.42) 01/23/2022   09:57:19  (  71.64,  29.40)    2.09                53
 01/23/2022   10:47:10   ( -71.55,-163.14) 01/23/2022   10:46:49  ( -71.52,-163.16)    3.25                21
 01/26/2022   01:23:35   ( -71.61, -22.33) 01/26/2022   01:24:22  ( -71.61, -22.40)    2.77                47
 01/26/2022   02:14:20   (  71.55, 145.09) 01/26/2022   02:13:48  (  71.57, 145.17)    3.53                32
 01/28/2022   16:50:45   (  71.61, -74.11) 01/28/2022   16:51:22  (  71.60, -74.18)    3.29                37
 01/28/2022   17:41:29   ( -71.54,  93.33) 01/28/2022   17:40:51  ( -71.54,  93.35)    0.82                38
 01/31/2022   08:17:53   ( -71.61,-125.86) 01/31/2022   08:18:23  ( -71.61,-125.92)    2.08                30
 01/31/2022   09:08:37   (  71.50,  41.64) 01/31/2022   09:07:50  (  71.51,  41.55)    3.44                47