Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 1 8.  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)
 01/09/2020   03:45:04   ( -68.84, -57.24) 01/09/2020   03:45:46  ( -68.82, -57.20)    2.38                42
 01/09/2020   04:35:47   (  68.66, 110.32) 01/09/2020   04:35:14  (  68.67, 110.25)    3.03                33
 01/11/2020   20:01:28   ( -68.84,  58.67) 01/11/2020   20:02:13  ( -68.85,  58.72)    2.51                45
 01/11/2020   20:52:12   (  68.71,-133.85) 01/11/2020   20:51:41  (  68.69,-133.84)    1.72                31
 01/11/2020   21:42:34   ( -67.60,  34.88) 01/11/2020   21:41:28  ( -67.63,  32.54)   99.45                66
 01/14/2020   12:17:53   ( -68.83, 174.57) 01/14/2020   12:18:42  ( -68.82, 174.56)    1.94                49
 01/14/2020   13:08:37   (  68.71, -17.95) 01/14/2020   13:08:09  (  68.71, -17.93)    0.98                28
 01/14/2020   13:59:01   ( -67.70, 150.65) 01/14/2020   13:57:54  ( -67.76, 148.57)   88.03                67
 01/17/2020   04:34:18   ( -68.83, -69.53) 01/17/2020   04:35:10  ( -68.83, -69.54)    0.42                52
 01/17/2020   05:25:02   (  68.71,  97.94) 01/17/2020   05:24:37  (  68.72,  97.97)    2.00                25
 01/17/2020   06:15:29   ( -67.86, -93.65) 01/17/2020   06:14:20  ( -67.89, -95.40)   73.51                69
 01/19/2020   20:50:43   ( -68.83,  46.37) 01/19/2020   20:51:38  ( -68.85,  46.36)    1.53                55
 01/19/2020   21:41:27   (  68.71,-146.16) 01/19/2020   21:41:05  (  68.73,-146.14)    2.49                22
 01/19/2020   22:31:56   ( -67.97,  22.12) 01/19/2020   22:30:46  ( -68.02,  20.63)   62.36                70