Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2021 2 3.  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)
 02/03/2021   12:54:50   (  69.34, -14.17) 02/03/2021   12:55:15  (  69.33, -14.11)    2.78                25
 02/03/2021   13:45:30   ( -69.20, 153.35) 02/03/2021   13:44:45  ( -69.22, 153.38)    2.36                45
 02/06/2021   05:11:11   (  69.36, 101.73) 02/06/2021   05:11:42  (  69.34, 101.78)    2.97                31
 02/06/2021   06:01:51   ( -69.21, -90.73) 02/06/2021   06:01:12  ( -69.23, -90.73)    1.99                39
 02/08/2021   21:27:31   (  69.32,-142.29) 02/08/2021   21:28:09  (  69.34,-142.33)    2.57                38
 02/08/2021   22:18:12   ( -69.22,  25.18) 02/08/2021   22:17:39  ( -69.23,  25.16)    1.28                33
 02/11/2021   13:43:52   (  69.34, -26.38) 02/11/2021   13:44:36  (  69.33, -26.46)    2.90                44
 02/11/2021   14:34:33   ( -69.24, 141.09) 02/11/2021   14:34:06  ( -69.23, 141.04)    1.83                27
 02/14/2021   06:00:12   (  69.36,  89.52) 02/14/2021   06:01:01  (  69.38,  89.49)    2.36                49
 02/14/2021   06:50:53   ( -69.25,-103.00) 02/14/2021   06:50:31  ( -69.28,-103.01)    3.38                22
 02/14/2021   07:41:20   (  68.24,  65.67) 02/14/2021   07:40:14  (  68.27,  63.37)   94.89                66
 02/16/2021   22:16:33   (  69.38,-154.59) 02/16/2021   22:17:28  (  69.37,-154.65)    3.07                55
 02/16/2021   23:07:14   ( -69.27,  12.90) 02/16/2021   23:06:58  ( -69.27,  12.86)    1.84                16
 02/16/2021   23:57:45   (  68.48,-178.71) 02/16/2021   23:56:36  (  68.53, 179.57)   70.37                69