Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 2 7.  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)
 02/07/2020   15:36:21   (  68.83, -55.01) 02/07/2020   15:37:07  (  68.84, -55.04)    1.83                46
 02/07/2020   16:27:02   ( -68.73, 112.44) 02/07/2020   16:26:37  ( -68.73, 112.45)    0.41                25
 02/10/2020   07:52:46   (  68.85,  60.86) 02/10/2020   07:53:39  (  68.87,  60.86)    2.40                53
 02/10/2020   08:43:27   ( -68.75,-131.68) 02/10/2020   08:43:09  ( -68.77,-131.64)    2.87                18
 02/10/2020   09:33:57   (  67.88,  36.75) 02/10/2020   09:32:49  (  67.93,  35.00)   73.40                68
 02/13/2020   00:09:10   (  68.88, 176.72) 02/13/2020   00:10:10  (  68.90, 176.76)    3.04                60
 02/13/2020   00:59:51   ( -68.77, -15.80) 02/13/2020   00:59:41  ( -68.75, -15.80)    2.32                10
 02/13/2020   01:50:26   (  68.18, 152.28) 02/13/2020   01:49:15  (  68.24, 151.23)   43.84                71
 02/15/2020   16:25:34   (  68.86, -67.35) 02/15/2020   16:26:43  (  68.87, -67.41)    2.89                69
 02/15/2020   17:16:16   ( -68.79, 100.06) 02/15/2020   17:16:13  ( -68.78, 100.10)    2.38                 3
 02/15/2020   18:06:55   (  68.43, -92.14) 02/15/2020   18:05:43  (  68.49, -92.60)   20.27                72
 02/18/2020   08:42:02   (  69.06,  48.28) 02/18/2020   08:43:13  (  69.01,  48.63)   14.89                71
 02/18/2020   09:32:40   ( -68.77,-144.01) 02/18/2020   09:32:46  ( -68.75,-144.07)    3.31                 6
 02/18/2020   10:23:23   (  68.63,  23.50) 02/18/2020   10:22:13  (  68.63,  23.43)    2.77                70
 02/21/2020   00:58:31   (  69.32, 163.82) 02/21/2020   00:59:42  (  69.20, 164.74)   38.35                71
 02/21/2020   01:49:05   ( -68.81, -28.15) 02/21/2020   01:49:17  ( -68.83, -28.10)    3.46                12
 02/21/2020   02:39:48   (  68.67, 139.34) 02/21/2020   02:38:45  (  68.65, 139.32)    2.13                63