Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 2 8.  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)
 02/10/2020   07:52:46   (  68.86,  60.85) 02/10/2020   07:53:39  (  68.86,  60.84)    0.28                53
 02/10/2020   08:43:27   ( -68.75,-131.69) 02/10/2020   08:43:09  ( -68.75,-131.66)    1.22                18
 02/10/2020   09:33:57   (  67.88,  36.74) 02/10/2020   09:32:49  (  67.92,  34.98)   73.64                68
 02/13/2020   00:09:11   (  68.88, 176.72) 02/13/2020   00:10:11  (  68.88, 176.74)    0.70                60
 02/13/2020   00:59:52   ( -68.77, -15.81) 02/13/2020   00:59:41  ( -68.78, -15.76)    2.42                11
 02/13/2020   01:50:27   (  68.18, 152.28) 02/13/2020   01:49:16  (  68.22, 151.21)   44.44                71
 02/15/2020   16:25:35   (  68.91, -67.41) 02/15/2020   16:26:42  (  68.90, -67.37)    1.84                67
 02/15/2020   17:16:16   ( -68.79, 100.07) 02/15/2020   17:16:12  ( -68.80, 100.14)    3.23                 4
 02/15/2020   18:06:55   (  68.42, -92.14) 02/15/2020   18:05:43  (  68.46, -92.64)   21.09                72
 02/18/2020   08:42:02   (  69.05,  48.30) 02/18/2020   08:43:13  (  68.97,  48.58)   14.05                71
 02/18/2020   09:32:40   ( -68.76,-143.99) 02/18/2020   09:32:45  ( -68.77,-144.05)    2.40                 5
 02/18/2020   10:23:24   (  68.67,  23.44) 02/18/2020   10:22:12  (  68.64,  23.45)    2.46                72
 02/21/2020   00:58:31   (  69.29, 163.85) 02/21/2020   00:59:41  (  69.20, 164.74)   36.51                70
 02/21/2020   01:49:05   ( -68.79, -28.13) 02/21/2020   01:49:17  ( -68.78, -28.17)    1.92                12
 02/21/2020   02:39:48   (  68.65, 139.37) 02/21/2020   02:38:44  (  68.65, 139.32)    1.94                64