Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 12 10.  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)
 12/11/2020   21:46:23   (  69.19,-147.12) 12/11/2020   21:47:11  (  69.18,-147.15)    1.56                48
 12/11/2020   22:37:04   ( -69.05,  20.39) 12/11/2020   22:36:41  ( -69.07,  20.33)    2.90                23
 12/11/2020   23:27:30   (  68.01,-170.92) 12/11/2020   23:26:24  (  68.07,-173.25)   97.13                66
 12/14/2020   14:02:45   (  69.22, -31.24) 12/14/2020   14:03:38  (  69.19, -31.26)    3.55                53
 12/14/2020   14:53:26   ( -69.08, 136.27) 12/14/2020   14:53:08  ( -69.08, 136.24)    1.34                18
 12/14/2020   15:43:55   (  68.20, -55.25) 12/14/2020   15:42:47  (  68.30, -57.09)   76.64                68
 12/17/2020   06:19:05   (  69.21,  84.70) 12/17/2020   06:20:04  (  69.19,  84.63)    3.03                59
 12/17/2020   07:09:47   ( -69.12,-107.86) 12/17/2020   07:09:33  ( -69.14,-107.80)    3.19                14
 12/17/2020   08:00:19   (  68.40,  60.42) 12/17/2020   07:59:10  (  68.47,  59.00)   58.36                69
 12/19/2020   22:35:27   (  69.25,-159.43) 12/19/2020   22:36:30  (  69.25,-159.41)    0.81                63
 12/19/2020   23:26:08   ( -69.11,   8.08) 12/19/2020   23:26:00  ( -69.14,   8.08)    3.14                 8
 12/20/2020   00:16:44   (  68.61, 176.08) 12/20/2020   00:15:33  (  68.69, 175.16)   38.36                71
 12/22/2020   14:51:48   (  69.24, -43.49) 12/22/2020   14:52:57  (  69.24, -43.54)    1.89                69
 12/22/2020   15:42:30   ( -69.16, 123.94) 12/22/2020   15:42:27  ( -69.13, 123.96)    2.95                 3
 12/22/2020   16:33:09   (  68.81, -68.27) 12/22/2020   16:31:57  (  68.85, -68.76)   19.92                72