Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2021 10 13.  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)
 10/16/2021   05:30:57   (  70.73,  96.53) 10/16/2021   05:32:08  (  70.62,  97.32)   31.57                71
 10/16/2021   06:21:32   ( -70.32, -95.49) 10/16/2021   06:21:41  ( -70.34, -95.46)    2.47                 9
 10/16/2021   07:12:16   (  70.21,  71.99) 10/16/2021   07:11:08  (  70.23,  72.03)    2.99                68
 10/18/2021   21:47:18   (  70.97,-147.93) 10/18/2021   21:48:27  (  70.90,-146.38)   57.02                69
 10/18/2021   22:37:49   ( -70.34,  20.42) 10/18/2021   22:38:05  ( -70.35,  20.44)    0.74                16
 10/18/2021   23:28:33   (  70.24,-172.11) 10/18/2021   23:27:32  (  70.24,-172.08)    1.30                61
 10/21/2021   14:03:41   (  71.27, -32.49) 10/21/2021   14:04:47  (  71.17, -30.07)   87.42                66
 10/21/2021   14:54:07   ( -70.37, 136.32) 10/21/2021   14:54:30  ( -70.35, 136.32)    2.67                23
 10/21/2021   15:44:50   (  70.22, -56.13) 10/21/2021   15:43:57  (  70.24, -56.19)    2.69                53
 10/24/2021   07:10:25   ( -70.41,-107.78) 10/24/2021   07:10:54  ( -70.40,-107.72)    2.41                29
 10/24/2021   08:01:08   (  70.26,  59.76) 10/24/2021   08:00:21  (  70.29,  59.76)    2.58                47
 10/26/2021   23:26:42   ( -70.39,   8.20) 10/26/2021   23:27:19  ( -70.39,   8.15)    1.82                37
 10/27/2021   00:17:26   (  70.30, 175.64) 10/27/2021   00:16:45  (  70.33, 175.70)    3.50                41