Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 2 21.  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   17:15:00   (  69.48, -80.51) 02/23/2020   17:16:09  (  69.41, -79.12)   54.87                69
 02/23/2020   18:05:31   ( -68.81,  87.73) 02/23/2020   18:05:48  ( -68.80,  87.73)    1.15                17
 02/23/2020   18:56:14   (  68.67,-104.77) 02/23/2020   18:55:15  (  68.69,-104.76)    2.33                59
 02/26/2020   09:31:28   (  69.71,  35.05) 02/26/2020   09:32:35  (  69.64,  37.06)   77.94                67
 02/26/2020   10:21:55   ( -68.83,-156.38) 02/26/2020   10:22:18  ( -68.81,-156.39)    1.34                23
 02/26/2020   11:12:38   (  68.69,  11.11) 02/26/2020   11:11:45  (  68.70,  11.12)    0.98                53
 02/29/2020   02:38:20   ( -68.84, -40.50) 02/29/2020   02:38:48  ( -68.86, -40.46)    2.31                28
 02/29/2020   03:29:03   (  68.71, 126.98) 02/29/2020   03:28:16  (  68.68, 126.97)    3.39                47
 03/02/2020   18:54:45   ( -68.86,  75.38) 03/02/2020   18:55:18  ( -68.87,  75.43)    2.78                33
 03/02/2020   19:45:27   (  68.68,-117.07) 03/02/2020   19:44:46  (  68.70,-117.14)    3.38                41
 03/05/2020   11:11:10   ( -68.87,-168.74) 03/05/2020   11:11:48  ( -68.87,-168.70)    1.79                38
 03/05/2020   12:01:53   (  68.76,  -1.27) 03/05/2020   12:01:15  (  68.74,  -1.21)    2.91                38