Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 10 14.  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)
 10/16/2020   14:21:20   (  69.13, -36.01) 10/16/2020   14:22:30  (  69.12, -35.97)    2.35                70
 10/16/2020   15:12:00   ( -68.97, 131.53) 10/16/2020   15:12:01  ( -68.97, 131.46)    2.82                 1
 10/16/2020   16:02:42   (  68.76, -60.87) 10/16/2020   16:01:29  (  68.79, -61.11)   10.39                73
 10/19/2020   06:37:44   (  69.28,  79.70) 10/19/2020   06:38:56  (  69.21,  80.02)   15.39                72
 10/19/2020   07:28:22   ( -69.01,-112.60) 10/19/2020   07:28:28  ( -69.00,-112.61)    0.92                 6
 10/19/2020   08:19:05   (  68.85,  54.92) 10/19/2020   08:17:55  (  68.88,  54.88)    3.16                70
 10/21/2020   22:54:10   (  69.49,-164.68) 10/21/2020   22:55:21  (  69.40,-163.84)   33.95                71
 10/21/2020   23:44:45   ( -69.04,   3.27) 10/21/2020   23:44:56  ( -69.03,   3.31)    1.99                11
 10/22/2020   00:35:28   (  68.90, 170.78) 10/22/2020   00:34:23  (  68.91, 170.79)    1.09                65
 10/24/2020   15:10:37   (  69.74, -49.14) 10/24/2020   15:11:46  (  69.59, -47.71)   57.77                69
 10/24/2020   16:01:07   ( -69.03, 119.21) 10/24/2020   16:01:24  ( -69.06, 119.22)    3.34                17
 10/24/2020   16:51:51   (  68.94, -73.36) 10/24/2020   16:50:51  (  68.93, -73.29)    3.11                60
 10/27/2020   07:27:03   (  69.95,  66.47) 10/27/2020   07:28:10  (  69.83,  68.51)   78.76                67
 10/27/2020   08:17:30   ( -69.07,-124.93) 10/27/2020   08:17:52  ( -69.08,-124.87)    2.81                22
 10/27/2020   09:08:13   (  68.94,  42.56) 10/27/2020   09:07:19  (  68.95,  42.61)    2.67                54