Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 9 5.  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)
 09/06/2020   09:24:57   ( -69.01,-141.89) 09/06/2020   09:25:57  ( -69.02,-141.92)    1.42                60
 09/06/2020   10:15:41   (  68.89,  25.58) 09/06/2020   10:15:24  (  68.92,  25.59)    2.54                17
 09/06/2020   11:06:13   ( -68.31,-166.33) 09/06/2020   11:05:02  ( -68.36,-167.46)   46.75                71
 09/09/2020   01:41:20   ( -69.02, -26.00) 09/09/2020   01:42:26  ( -69.01, -26.05)    2.96                66
 09/09/2020   02:32:04   (  68.91, 141.47) 09/09/2020   02:31:53  (  68.90, 141.46)    0.98                11
 09/09/2020   03:22:39   ( -68.49, -50.64) 09/09/2020   03:21:27  ( -68.57, -51.33)   29.16                72
 09/11/2020   17:57:43   ( -69.04,  89.90) 09/11/2020   17:58:54  ( -69.05,  89.88)    1.21                71
 09/11/2020   18:48:27   (  68.92,-102.63) 09/11/2020   18:48:21  (  68.94,-102.62)    1.70                 6
 09/11/2020   19:39:06   ( -68.72,  64.97) 09/11/2020   19:37:52  ( -68.77,  64.81)    8.95                74
 09/14/2020   10:14:08   ( -69.22,-154.43) 09/14/2020   10:15:20  ( -69.14,-154.12)   14.94                72
 09/14/2020   11:04:49   (  68.94,  13.26) 09/14/2020   11:04:49  (  68.91,  13.23)    3.22                 0
 09/14/2020   11:55:29   ( -68.79,-179.21) 09/14/2020   11:54:19  ( -68.81,-179.26)    3.23                70
 09/17/2020   02:30:34   ( -69.39, -38.77) 09/17/2020   02:31:46  ( -69.28, -38.06)   30.61                72
 09/17/2020   03:21:12   (  68.96, 129.15) 09/17/2020   03:21:17  (  68.94, 129.15)    2.27                 5
 09/17/2020   04:11:53   ( -68.86, -63.39) 09/17/2020   04:10:47  ( -68.84, -63.35)    2.92                66