Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 9 29.  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, -11.35) 09/30/2020   12:43:41  (  69.00, -11.40)    2.93                36
 09/30/2020   13:33:46   ( -68.93, 156.09) 09/30/2020   13:33:10  ( -68.94, 156.16)    3.08                36
 10/03/2020   04:59:28   (  69.04, 104.52) 10/03/2020   05:00:09  (  69.05, 104.55)    1.50                41
 10/03/2020   05:50:09   ( -68.95, -88.02) 10/03/2020   05:49:39  ( -68.94, -87.95)    2.94                30
 10/05/2020   21:15:50   (  69.08,-139.60) 10/05/2020   21:16:37  (  69.05,-139.57)    2.80                47
 10/05/2020   22:06:30   ( -68.92,  27.93) 10/05/2020   22:06:07  ( -68.95,  27.93)    2.93                23
 10/05/2020   22:56:57   (  67.89,-163.42) 10/05/2020   22:55:50  (  67.94,-165.65)   93.46                67
 10/08/2020   13:32:12   (  69.05, -23.66) 10/08/2020   13:33:06  (  69.05, -23.69)    1.44                54
 10/08/2020   14:22:53   ( -68.95, 143.81) 10/08/2020   14:22:36  ( -68.95, 143.81)    0.15                17
 10/08/2020   15:13:23   (  68.09, -47.74) 10/08/2020   15:12:15  (  68.16, -49.51)   73.58                68
 10/11/2020   05:48:35   (  69.09,  92.21) 10/11/2020   05:49:34  (  69.10,  92.25)    2.25                59
 10/11/2020   06:39:16   ( -68.98,-100.31) 10/11/2020   06:39:05  ( -68.95,-100.31)    3.18                11
 10/11/2020   07:29:50   (  68.34,  67.85) 10/11/2020   07:28:40  (  68.38,  66.63)   50.20                70