Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 2 14.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 02/15/2022   02:47:07   (  71.42, 137.25) 02/15/2022   02:48:17  (  71.33, 138.54)   46.81                70
 02/15/2022   03:37:41   ( -70.88, -54.48) 02/15/2022   03:37:53  ( -70.89, -54.53)    1.79                12
 02/15/2022   04:28:26   (  70.77, 112.99) 02/15/2022   04:27:20  (  70.78, 112.96)    1.51                66
 02/17/2022   18:14:09   ( -71.12,  86.02) 02/17/2022   18:15:20  ( -71.09,  86.40)   14.21                71
 02/17/2022   19:04:51   (  70.87,-106.24) 02/17/2022   19:04:49  (  70.88,-106.28)    2.63                 2
 02/17/2022   19:55:32   ( -70.68,  61.38) 02/17/2022   19:54:20  ( -70.71,  61.09)   11.01                72
 02/20/2022   09:41:15   (  70.96,  34.53) 02/20/2022   09:42:17  (  70.97,  34.46)    2.88                62
 02/20/2022   10:31:58   ( -70.88,-158.03) 02/20/2022   10:31:46  ( -70.91,-158.00)    2.84                12
 02/20/2022   11:22:32   (  70.20,  10.38) 02/20/2022   11:21:23  (  70.25,   8.67)   64.77                69
 02/23/2022   01:08:23   ( -70.98, -17.27) 02/23/2022   01:09:15  ( -70.98, -17.28)    0.25                52
 02/23/2022   01:59:08   (  70.88, 150.21) 02/23/2022   01:58:42  (  70.88, 150.20)    0.58                26
 02/25/2022   16:35:33   (  70.98, -69.04) 02/25/2022   16:36:10  (  70.99, -69.02)    1.49                37
 02/25/2022   17:26:15   ( -70.86,  98.49) 02/25/2022   17:25:40  ( -70.88,  98.45)    3.18                35