Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 1 25.  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)
 01/25/2020   05:23:41   ( -69.33, -82.53) 01/25/2020   05:24:52  ( -69.22, -81.50)   42.05                71
 01/25/2020   06:14:17   (  68.78,  85.55) 01/25/2020   06:14:25  (  68.79,  85.59)    2.40                 8
 01/25/2020   07:04:57   ( -68.64,-106.94) 01/25/2020   07:03:56  ( -68.62,-106.99)    2.33                61
 01/27/2020   21:40:11   ( -69.60,  32.99) 01/27/2020   21:41:20  ( -69.50,  34.72)   68.05                69
 01/27/2020   22:30:42   (  68.78,-158.56) 01/27/2020   22:30:58  (  68.79,-158.56)    0.33                16
 01/27/2020   23:21:23   ( -68.69,   8.89) 01/27/2020   23:20:28  ( -68.68,   8.94)    2.40                55
 01/30/2020   13:56:41   ( -69.86, 148.50) 01/30/2020   13:57:48  ( -69.76, 150.95)   94.44                67
 01/30/2020   14:47:07   (  68.79, -42.66) 01/30/2020   14:47:31  (  68.77, -42.71)    2.35                24
 01/30/2020   15:37:48   ( -68.69, 124.79) 01/30/2020   15:37:01  ( -68.67, 124.80)    2.07                47
 02/02/2020   07:03:32   (  68.79,  73.23) 02/02/2020   07:04:03  (  68.82,  73.21)    2.45                31
 02/02/2020   07:54:13   ( -68.69,-119.31) 02/02/2020   07:53:33  ( -68.71,-119.29)    3.05                40
 02/04/2020   23:19:57   (  68.85,-170.95) 02/04/2020   23:20:34  (  68.85,-170.88)    2.80                37
 02/05/2020   00:10:37   ( -68.69,  -3.41) 02/05/2020   00:10:05  ( -68.70,  -3.44)    1.78                32
 02/07/2020   15:36:21   (  68.81, -54.99) 02/07/2020   15:37:07  (  68.83, -55.05)    3.36                46
 02/07/2020   16:27:03   ( -68.74, 112.42) 02/07/2020   16:26:37  ( -68.74, 112.47)    2.16                26