Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 11 27.  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)
 11/28/2020   11:34:08   ( -70.05,-175.32) 11/28/2020   11:35:15  ( -69.96,-173.15)   83.31                67
 11/28/2020   12:24:36   (  69.14,  -6.67) 11/28/2020   12:24:55  (  69.14,  -6.61)    2.48                19
 11/28/2020   13:15:17   ( -68.99, 160.85) 11/28/2020   13:14:26  ( -68.97, 160.81)    3.07                51
 12/01/2020   04:40:57   (  69.11, 109.29) 12/01/2020   04:41:23  (  69.13, 109.26)    2.79                26
 12/01/2020   05:31:39   ( -69.01, -83.26) 12/01/2020   05:30:53  ( -69.02, -83.24)    1.22                46
 12/03/2020   20:57:18   (  69.13,-134.82) 12/03/2020   20:57:50  (  69.12,-134.87)    2.64                32
 12/03/2020   21:48:00   ( -69.04,  32.64) 12/03/2020   21:47:20  ( -69.02,  32.63)    2.42                40
 12/06/2020   13:13:40   (  69.16, -18.93) 12/06/2020   13:14:17  (  69.16, -18.94)    0.53                37
 12/06/2020   14:04:22   ( -69.06, 148.52) 12/06/2020   14:03:47  ( -69.05, 148.56)    1.63                35
 12/09/2020   05:30:02   (  69.19,  96.95) 12/09/2020   05:30:44  (  69.19,  96.98)    1.10                42
 12/09/2020   06:20:43   ( -69.04, -95.52) 12/09/2020   06:20:15  ( -69.03, -95.59)    2.83                28