Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 8.  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)
 04/09/2020   06:44:25   ( -69.04,-102.21) 04/09/2020   06:45:36  ( -68.97,-101.92)   13.38                71
 04/09/2020   07:35:05   (  68.74,  65.51) 04/09/2020   07:35:05  (  68.75,  65.44)    3.25                 0
 04/09/2020   08:25:47   ( -68.66,-127.06) 04/09/2020   08:24:35  ( -68.64,-127.06)    1.89                72
 04/11/2020   23:00:51   ( -69.14,  13.56) 04/11/2020   23:02:02  ( -69.05,  14.06)   22.24                71
 04/11/2020   23:51:30   (  68.78,-178.64) 04/11/2020   23:51:32  (  68.77,-178.65)    1.77                 2
 04/12/2020   00:42:11   ( -68.65, -11.15) 04/12/2020   00:41:02  ( -68.66, -11.15)    0.81                69
 04/14/2020   15:17:16   ( -69.24, 129.32) 04/14/2020   15:18:27  ( -69.12, 130.04)   31.37                71
 04/14/2020   16:07:53   (  68.78, -62.73) 04/14/2020   16:07:58  (  68.78, -62.75)    0.60                 5
 04/14/2020   16:58:34   ( -68.65, 104.76) 04/14/2020   16:57:28  ( -68.67, 104.76)    2.84                66
 04/17/2020   07:33:42   ( -69.34,-114.91) 04/17/2020   07:34:52  ( -69.23,-113.92)   41.02                70
 04/17/2020   08:24:17   (  68.77,  53.18) 04/17/2020   08:24:25  (  68.79,  53.15)    1.69                 8
 04/17/2020   09:14:59   ( -68.70,-139.40) 04/17/2020   09:13:55  ( -68.68,-139.34)    2.86                64
 04/19/2020   23:50:08   ( -69.45,   0.84) 04/19/2020   23:51:18  ( -69.29,   2.05)   50.32                70
 04/20/2020   00:40:41   (  68.77, 169.09) 04/20/2020   00:40:52  (  68.79, 169.05)    2.56                11
 04/20/2020   01:31:23   ( -68.70, -23.49) 04/20/2020   01:30:22  ( -68.69, -23.45)    2.05                61