Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 3 6.  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)
 03/08/2020   03:27:32   ( -68.81, -52.75) 03/08/2020   03:28:09  ( -68.81, -52.79)    1.81                37
 03/08/2020   04:18:15   (  68.68, 114.73) 03/08/2020   04:17:36  (  68.69, 114.72)    1.26                39
 03/10/2020   19:43:57   ( -68.84,  63.12) 03/10/2020   19:44:37  ( -68.81,  63.11)    3.03                40
 03/10/2020   20:34:40   (  68.71,-129.40) 03/10/2020   20:34:04  (  68.70,-129.39)    2.09                36
 03/13/2020   12:00:21   ( -68.81, 179.06) 03/13/2020   12:01:05  ( -68.81, 179.00)    2.33                44
 03/13/2020   12:51:04   (  68.69, -13.47) 03/13/2020   12:50:32  (  68.69, -13.51)    1.61                32
 03/16/2020   04:16:45   ( -68.84, -65.08) 03/16/2020   04:17:31  ( -68.86, -65.05)    2.81                46
 03/16/2020   05:07:28   (  68.72, 102.39) 03/16/2020   05:06:58  (  68.74, 102.44)    2.48                30
 03/16/2020   05:57:52   ( -67.66, -88.93) 03/16/2020   05:56:45  ( -67.70, -91.17)   94.82                67
 03/18/2020   20:33:10   ( -68.87,  50.78) 03/18/2020   20:33:59  ( -68.85,  50.82)    2.67                49
 03/18/2020   21:23:52   (  68.71,-141.68) 03/18/2020   21:23:26  (  68.72,-141.69)    2.16                26
 03/18/2020   22:14:18   ( -67.74,  26.87) 03/18/2020   22:13:11  ( -67.80,  24.83)   86.02                67