Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 9 23.  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)
 09/25/2020   03:19:54   ( -70.09, -52.05) 09/25/2020   03:21:00  ( -69.97, -49.49)   98.09                66
 09/25/2020   04:10:20   (  69.01, 116.82) 09/25/2020   04:10:43  (  68.99, 116.83)    2.73                23
 09/25/2020   05:01:00   ( -68.87, -75.66) 09/25/2020   05:00:13  ( -68.87, -75.68)    1.03                47
 09/27/2020   20:26:43   (  69.03,-127.29) 09/27/2020   20:27:11  (  69.04,-127.22)    3.15                28
 09/27/2020   21:17:23   ( -68.88,  40.23) 09/27/2020   21:16:42  ( -68.88,  40.21)    1.15                41
 09/30/2020   12:43:06   (  69.05, -11.40) 09/30/2020   12:43:40  (  69.04, -11.34)    2.65                34
 09/30/2020   13:33:46   ( -68.90, 156.13) 09/30/2020   13:33:11  ( -68.88, 156.09)    2.92                35
 10/03/2020   04:59:27   (  69.02, 104.56) 10/03/2020   05:00:08  (  69.03, 104.52)    1.79                41
 10/03/2020   05:50:08   ( -68.92, -87.98) 10/03/2020   05:49:38  ( -68.93, -87.98)    1.06                30
 10/05/2020   21:15:50   (  69.04,-139.56) 10/05/2020   21:16:36  (  69.06,-139.55)    2.63                46
 10/05/2020   22:06:31   ( -68.93,  27.91) 10/05/2020   22:06:07  ( -68.91,  27.89)    2.71                24