Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 8 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)
 08/25/2019   12:05:50   ( -68.83, 177.63) 08/25/2019   12:06:36  ( -68.85, 177.65)    2.78                46
 08/25/2019   12:56:34   (  68.71, -14.90) 08/25/2019   12:56:04  (  68.69, -14.90)    1.57                30
 08/25/2019   13:46:57   ( -67.64, 153.78) 08/25/2019   13:45:50  ( -67.69, 151.54)   94.94                67
 08/28/2019   04:22:17   ( -68.85, -66.51) 08/28/2019   04:23:04  ( -68.87, -66.45)    3.36                47
 08/28/2019   05:13:01   (  68.73, 100.96) 08/28/2019   05:12:32  (  68.71, 101.00)    3.03                29
 08/28/2019   06:03:25   ( -67.72, -90.43) 08/28/2019   06:02:17  ( -67.76, -92.50)   87.48                68
 08/30/2019   20:38:42   ( -68.82,  49.41) 08/30/2019   20:39:32  ( -68.83,  49.38)    1.54                50
 08/30/2019   21:29:26   (  68.70,-143.12) 08/30/2019   21:28:59  (  68.72,-143.11)    2.10                27
 08/30/2019   22:19:51   ( -67.74,  25.43) 08/30/2019   22:18:43  ( -67.83,  23.46)   83.40                68
 09/02/2019   12:55:09   ( -68.85, 165.27) 09/02/2019   12:56:00  ( -68.84, 165.28)    0.65                51
 09/02/2019   13:45:53   (  68.73, -27.27) 09/02/2019   13:45:27  (  68.73, -27.22)    2.00                26
 09/02/2019   14:36:19   ( -67.82, 141.22) 09/02/2019   14:35:11  ( -67.84, 139.36)   78.23                68
 09/05/2019   05:11:36   ( -68.87, -78.88) 09/05/2019   05:12:28  ( -68.85, -78.83)    3.05                52
 09/05/2019   06:02:19   (  68.70,  88.66) 09/05/2019   06:01:56  (  68.68,  88.61)    2.90                23
 09/05/2019   06:52:47   ( -67.90,-102.99) 09/05/2019   06:51:38  ( -67.91,-104.69)   70.82                69