Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 1 22.  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)
 01/22/2020   13:07:12   ( -69.08, 161.92) 01/22/2020   13:08:24  ( -68.99, 162.33)   19.27                72
 01/22/2020   13:57:52   (  68.74, -30.30) 01/22/2020   13:57:54  (  68.72, -30.36)    3.07                 2
 01/22/2020   14:48:33   ( -68.65, 137.14) 01/22/2020   14:47:23  ( -68.66, 137.20)    2.80                70
 01/25/2020   05:23:42   ( -69.35, -82.56) 01/25/2020   05:24:52  ( -69.26, -81.46)   44.41                70
 01/25/2020   06:14:17   (  68.75,  85.59) 01/25/2020   06:14:26  (  68.77,  85.56)    2.73                 9
 01/25/2020   07:04:58   ( -68.66,-106.97) 01/25/2020   07:03:56  ( -68.66,-106.94)    1.21                62
 01/27/2020   21:40:11   ( -69.63,  32.95) 01/27/2020   21:41:19  ( -69.53,  34.76)   71.09                68
 01/27/2020   22:30:41   (  68.76,-158.53) 01/27/2020   22:30:58  (  68.76,-158.59)    2.43                17
 01/27/2020   23:21:22   ( -68.66,   8.93) 01/27/2020   23:20:28  ( -68.66,   8.91)    1.02                54
 01/30/2020   13:56:41   ( -69.90, 148.45) 01/30/2020   13:57:47  ( -69.79, 150.99)   97.98                66
 01/30/2020   14:47:06   (  68.78, -42.65) 01/30/2020   14:47:30  (  68.80, -42.68)    2.87                24
 01/30/2020   15:37:47   ( -68.67, 124.81) 01/30/2020   15:37:00  ( -68.70, 124.83)    2.97                47
 02/02/2020   07:03:31   (  68.80,  73.23) 02/02/2020   07:04:03  (  68.78,  73.16)    3.17                32
 02/02/2020   07:54:12   ( -68.69,-119.30) 02/02/2020   07:53:33  ( -68.68,-119.33)    1.04                39
 02/04/2020   23:19:56   (  68.82,-170.90) 02/04/2020   23:20:35  (  68.81,-170.93)    1.64                39
 02/05/2020   00:10:37   ( -68.70,  -3.42) 02/05/2020   00:10:05  ( -68.72,  -3.42)    1.78                32