Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 6 24.  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)
 06/26/2020   00:21:11   ( -68.91,  -6.05) 06/26/2020   00:22:06  ( -68.95,  -6.05)    3.63                55
 06/26/2020   01:11:54   (  68.77, 161.46) 06/26/2020   01:11:34  (  68.78, 161.39)    3.26                20
 06/26/2020   02:02:24   ( -68.06, -30.29) 06/26/2020   02:01:14  ( -68.12, -31.78)   62.41                70
 06/28/2020   16:37:35   ( -68.95, 109.82) 06/28/2020   16:38:35  ( -68.95, 109.83)    0.60                60
 06/28/2020   17:28:18   (  68.81, -82.68) 06/28/2020   17:28:02  (  68.83, -82.66)    3.04                16
 06/28/2020   18:18:51   ( -68.25,  85.38) 06/28/2020   18:17:40  ( -68.28,  84.30)   44.63                71
 07/01/2020   08:53:58   ( -68.93,-134.24) 07/01/2020   08:55:04  ( -68.94,-134.29)    2.43                66
 07/01/2020   09:44:42   (  68.85,  33.18) 07/01/2020   09:44:31  (  68.82,  33.21)    2.91                11
 07/01/2020   10:35:18   ( -68.44,-158.97) 07/01/2020   10:34:05  ( -68.50,-159.56)   25.09                73
 07/04/2020   01:10:21   ( -68.96, -18.38) 07/04/2020   01:11:31  ( -68.98, -18.35)    2.70                70
 07/04/2020   02:01:04   (  68.84, 149.10) 07/04/2020   02:00:59  (  68.81, 149.07)    3.23                 5
 07/04/2020   02:51:43   ( -68.59, -43.24) 07/04/2020   02:50:30  ( -68.66, -43.49)   12.65                73
 07/06/2020   17:26:47   ( -69.11,  97.33) 07/06/2020   17:27:58  ( -69.08,  97.65)   12.93                71
 07/06/2020   18:17:27   (  68.82, -94.97) 07/06/2020   18:17:27  (  68.85, -95.00)    2.66                 0
 07/06/2020   19:08:09   ( -68.73,  72.48) 07/06/2020   19:06:57  ( -68.75,  72.51)    2.79                72