Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 2 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)
 02/23/2020   17:14:59   (  69.46, -80.49) 02/23/2020   17:16:08  (  69.35, -79.18)   52.49                69
 02/23/2020   18:05:30   ( -68.80,  87.76) 02/23/2020   18:05:46  ( -68.80,  87.74)    0.80                16
 02/23/2020   18:56:14   (  68.71,-104.81) 02/23/2020   18:55:13  (  68.69,-104.75)    3.22                61
 02/26/2020   09:31:26   (  69.59,  35.23) 02/26/2020   09:32:34  (  69.52,  36.91)   66.15                68
 02/26/2020   10:21:55   ( -68.81,-156.37) 02/26/2020   10:22:15  ( -68.80,-156.38)    1.20                20
 02/26/2020   11:12:38   (  68.68,  11.13) 02/26/2020   11:11:42  (  68.69,  11.12)    0.94                56
 02/29/2020   01:47:53   (  69.72, 150.94) 02/29/2020   01:49:00  (  69.60, 152.91)   77.66                67
 02/29/2020   02:38:20   ( -68.83, -40.49) 02/29/2020   02:38:42  ( -68.84, -40.45)    1.55                22
 02/29/2020   03:29:03   (  68.70, 127.00) 02/29/2020   03:28:09  (  68.71, 127.04)    2.17                54
 03/02/2020   18:04:18   (  69.75, -93.20) 03/02/2020   18:05:25  (  69.66, -91.11)   81.11                67
 03/02/2020   18:54:45   ( -68.85,  75.39) 03/02/2020   18:55:08  ( -68.84,  75.45)    2.76                23
 03/02/2020   19:45:26   (  68.68,-117.06) 03/02/2020   19:44:35  (  68.66,-117.13)    3.22                51
 03/05/2020   10:20:42   (  69.78,  22.66) 03/05/2020   10:21:49  (  69.64,  24.76)   82.22                67
 03/05/2020   11:11:08   ( -68.82,-168.67) 03/05/2020   11:11:32  ( -68.83,-168.68)    0.44                24
 03/05/2020   12:01:51   (  68.70,  -1.20) 03/05/2020   12:00:59  (  68.70,  -1.19)    0.97                52