Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 12 11.  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)
 12/12/2022   22:46:21   (  72.63,-162.01) 12/12/2022   22:47:32  (  72.60,-161.81)    7.06                71
 12/12/2022   23:37:03   ( -72.50,   5.56) 12/12/2022   23:36:58  ( -72.50,   5.65)    3.18                 5
 12/13/2022   00:27:39   (  71.93, 174.00) 12/13/2022   00:26:30  (  71.94, 172.32)   58.20                69
 12/15/2022   11:41:21   (  72.55,   4.42) 12/15/2022   11:41:42  (  72.53,   4.50)    3.15                21
 12/15/2022   12:32:03   ( -72.42, 172.00) 12/15/2022   12:31:08  ( -72.43, 171.97)    1.50                55
 12/17/2022   23:45:36   ( -72.59,   3.32) 12/17/2022   23:46:28  ( -72.57,   3.36)    1.98                52
 12/18/2022   00:36:21   (  72.48, 170.84) 12/18/2022   00:35:51  (  72.50, 170.88)    2.52                30
 12/20/2022   11:49:58   (  72.85,   1.71) 12/20/2022   11:51:09  (  72.73,   2.45)   27.94                71
 12/20/2022   12:40:36   ( -72.51, 169.74) 12/20/2022   12:40:37  ( -72.51, 169.70)    1.23                 1
 12/20/2022   13:31:16   (  72.16, -22.24) 12/20/2022   13:30:05  (  72.17, -23.26)   34.62                71
 12/23/2022   00:44:53   (  72.54, 168.64) 12/23/2022   00:45:20  (  72.54, 168.55)    2.99                27
 12/23/2022   01:35:36   ( -72.50, -23.96) 12/23/2022   01:34:44  ( -72.49, -23.89)    2.37                52