Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 8 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)
 08/25/2019   12:05:50   ( -68.82, 177.64) 08/25/2019   12:06:37  ( -68.80, 177.59)    3.21                47
 08/25/2019   12:56:34   (  68.70, -14.89) 08/25/2019   12:56:04  (  68.70, -14.89)    0.43                30
 08/25/2019   13:46:57   ( -67.63, 153.79) 08/25/2019   13:45:50  ( -67.69, 151.54)   95.07                67
 08/28/2019   04:22:16   ( -68.84, -66.50) 08/28/2019   04:23:04  ( -68.81, -66.51)    3.27                48
 08/28/2019   05:13:00   (  68.72, 100.97) 08/28/2019   05:12:31  (  68.71, 101.00)    1.81                29
 08/28/2019   06:03:24   ( -67.71, -90.42) 08/28/2019   06:02:16  ( -67.76, -92.50)   87.97                68
 08/30/2019   20:38:42   ( -68.81,  49.43) 08/30/2019   20:39:32  ( -68.82,  49.38)    2.69                50
 08/30/2019   21:29:26   (  68.68,-143.10) 08/30/2019   21:28:59  (  68.71,-143.11)    3.05                27
 08/30/2019   22:19:51   ( -67.73,  25.45) 08/30/2019   22:18:44  ( -67.77,  23.39)   86.63                67
 09/02/2019   12:55:09   ( -68.83, 165.29) 09/02/2019   12:56:00  ( -68.83, 165.27)    1.02                51
 09/02/2019   13:45:53   (  68.70, -27.24) 09/02/2019   13:45:27  (  68.71, -27.23)    1.06                26
 09/02/2019   14:36:19   ( -67.80, 141.24) 09/02/2019   14:35:11  ( -67.83, 139.35)   79.78                68
 09/05/2019   05:11:36   ( -68.85, -78.85) 09/05/2019   05:12:28  ( -68.83, -78.85)    1.93                52
 09/05/2019   06:02:20   (  68.73,  88.62) 09/05/2019   06:01:55  (  68.71,  88.65)    1.85                25
 09/05/2019   06:52:46   ( -67.82,-102.90) 09/05/2019   06:51:38  ( -67.89,-104.71)   76.30                68
 09/07/2019   21:28:01   ( -68.81,  37.08) 09/07/2019   21:28:55  ( -68.83,  37.03)    2.62                54
 09/07/2019   22:18:45   (  68.69,-155.45) 09/07/2019   22:18:22  (  68.71,-155.47)    1.96                23
 09/07/2019   23:09:13   ( -67.89,  12.90) 09/07/2019   23:08:04  ( -67.94,  11.24)   69.63                69