Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 9.  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   06:44:24   ( -69.00,-102.15) 04/09/2020   06:45:36  ( -68.96,-101.94)    9.20                72
 04/09/2020   07:35:05   (  68.75,  65.50) 04/09/2020   07:35:05  (  68.74,  65.43)    2.80                 0
 04/09/2020   08:25:46   ( -68.62,-127.01) 04/09/2020   08:24:35  ( -68.63,-127.08)    3.06                71
 04/11/2020   23:00:50   ( -69.10,  13.62) 04/11/2020   23:02:02  ( -69.03,  14.04)   18.14                72
 04/11/2020   23:51:30   (  68.79,-178.66) 04/11/2020   23:51:31  (  68.81,-178.59)    3.32                 1
 04/12/2020   00:42:11   ( -68.66, -11.16) 04/12/2020   00:41:02  ( -68.65, -11.17)    1.87                69
 04/14/2020   15:17:16   ( -69.20, 129.39) 04/14/2020   15:18:28  ( -69.10, 130.02)   27.23                72
 04/14/2020   16:07:53   (  68.79, -62.74) 04/14/2020   16:07:58  (  68.77, -62.76)    2.45                 5
 04/14/2020   16:58:34   ( -68.66, 104.75) 04/14/2020   16:57:28  ( -68.66, 104.74)    0.42                66
 04/17/2020   07:33:41   ( -69.30,-114.85) 04/17/2020   07:34:52  ( -69.22,-113.94)   37.14                71
 04/17/2020   08:24:17   (  68.78,  53.17) 04/17/2020   08:24:25  (  68.77,  53.14)    1.80                 8
 04/17/2020   09:14:58   ( -68.66,-139.34) 04/17/2020   09:13:55  ( -68.67,-139.36)    1.71                63
 04/19/2020   23:50:07   ( -69.40,   0.91) 04/19/2020   23:51:17  ( -69.33,   2.10)   47.57                70
 04/20/2020   00:40:41   (  68.78, 169.08) 04/20/2020   00:40:52  (  68.77, 169.03)    2.21                11
 04/20/2020   01:31:22   ( -68.65, -23.43) 04/20/2020   01:30:22  ( -68.67, -23.47)    2.59                60
 04/22/2020   16:06:33   ( -69.51, 116.66) 04/22/2020   16:07:43  ( -69.39, 118.07)   56.46                70
 04/22/2020   16:57:06   (  68.83, -75.08) 04/22/2020   16:57:18  (  68.83, -75.01)    2.76                12
 04/22/2020   17:47:46   ( -68.65,  92.48) 04/22/2020   17:46:49  ( -68.67,  92.42)    3.06                57