Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2021 11 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)
 11/30/2021   14:53:09   (  70.59, -43.42) 11/30/2021   14:53:35  (  70.60, -43.34)    3.10                26
 11/30/2021   15:43:51   ( -70.47, 124.09) 11/30/2021   15:43:05  ( -70.48, 124.12)    1.50                46
 12/03/2021   05:29:49   (  71.15,  96.52) 12/03/2021   05:30:58  (  71.04,  97.93)   52.36                69
 12/03/2021   06:20:22   ( -70.56, -95.16) 12/03/2021   06:20:35  ( -70.54, -95.19)    2.31                13
 12/03/2021   07:11:07   (  70.44,  72.33) 12/03/2021   07:10:02  (  70.44,  72.30)    1.29                65
 12/05/2021   20:56:55   ( -70.64,  45.59) 12/05/2021   20:58:05  ( -70.65,  45.57)    1.37                70
 12/05/2021   21:47:40   (  70.53,-146.92) 12/05/2021   21:47:32  (  70.54,-146.94)    1.70                 8
 12/05/2021   22:38:18   ( -70.18,  20.94) 12/05/2021   22:37:06  ( -70.21,  20.21)   27.72                72
 12/08/2021   12:24:15   (  70.66,  -6.26) 12/08/2021   12:25:02  (  70.64,  -6.19)    3.24                47
 12/08/2021   13:14:57   ( -70.52, 161.29) 12/08/2021   13:14:32  ( -70.53, 161.28)    1.57                25
 12/11/2021   03:51:33   ( -70.63, -58.02) 12/11/2021   03:52:02  ( -70.62, -57.98)    1.82                29
 12/11/2021   04:42:18   (  70.53, 109.44) 12/11/2021   04:41:29  (  70.51, 109.50)    3.29                49