Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 9 28.  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)
 09/30/2020   12:43:05   (  69.02, -11.36) 09/30/2020   12:43:40  (  69.04, -11.34)    2.05                35
 09/30/2020   13:33:46   ( -68.93, 156.09) 09/30/2020   13:33:10  ( -68.93, 156.15)    2.66                36
 10/03/2020   04:59:28   (  69.05, 104.51) 10/03/2020   05:00:09  (  69.03, 104.53)    2.00                41
 10/03/2020   05:50:08   ( -68.90, -87.96) 10/03/2020   05:49:39  ( -68.93, -87.97)    2.90                29
 10/05/2020   21:15:49   (  69.03,-139.54) 10/05/2020   21:16:37  (  69.02,-139.60)    2.73                48
 10/05/2020   22:06:30   ( -68.93,  27.92) 10/05/2020   22:06:07  ( -68.92,  27.90)    1.27                23
 10/05/2020   22:56:56   (  67.84,-163.36) 10/05/2020   22:55:50  (  67.91,-165.68)   97.59                66
 10/08/2020   13:32:12   (  69.06, -23.66) 10/08/2020   13:33:05  (  69.06, -23.67)    0.41                53
 10/08/2020   14:22:53   ( -68.95, 143.80) 10/08/2020   14:22:35  ( -68.96, 143.83)    1.43                18
 10/08/2020   15:13:23   (  68.09, -47.75) 10/08/2020   15:12:15  (  68.12, -49.56)   75.00                68
 10/11/2020   05:48:35   (  69.09,  92.20) 10/11/2020   05:49:33  (  69.09,  92.25)    1.68                58
 10/11/2020   06:39:15   ( -68.93,-100.25) 10/11/2020   06:39:04  ( -68.94,-100.31)    3.13                11
 10/11/2020   07:29:49   (  68.29,  67.91) 10/11/2020   07:28:39  (  68.37,  66.63)   53.71                70