Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 2 20.  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)
 02/21/2020   00:58:31   (  69.24, 163.92) 02/21/2020   00:59:42  (  69.17, 164.69)   31.26                71
 02/21/2020   01:49:06   ( -68.79, -28.14) 02/21/2020   01:49:17  ( -68.79, -28.17)    1.29                11
 02/21/2020   02:39:50   (  68.70, 139.29) 02/21/2020   02:38:44  (  68.68, 139.34)    3.29                66
 02/23/2020   17:15:01   (  69.53, -80.58) 02/23/2020   17:16:10  (  69.41, -79.13)   58.12                69
 02/23/2020   18:05:31   ( -68.81,  87.74) 02/23/2020   18:05:49  ( -68.81,  87.72)    0.71                18
 02/23/2020   18:56:14   (  68.67,-104.76) 02/23/2020   18:55:16  (  68.69,-104.77)    2.95                58
 02/26/2020   09:31:29   (  69.76,  34.98) 02/26/2020   09:32:36  (  69.70,  37.12)   83.03                67
 02/26/2020   10:21:55   ( -68.82,-156.38) 02/26/2020   10:22:20  ( -68.83,-156.39)    0.56                25
 02/26/2020   11:12:38   (  68.69,  11.11) 02/26/2020   11:11:47  (  68.71,  11.11)    2.23                51
 02/29/2020   02:38:20   ( -68.84, -40.50) 02/29/2020   02:38:52  ( -68.84, -40.50)    0.54                32
 02/29/2020   03:29:03   (  68.71, 126.99) 02/29/2020   03:28:19  (  68.72, 126.99)    1.36                44
 03/02/2020   18:54:45   ( -68.86,  75.38) 03/02/2020   18:55:24  ( -68.86,  75.38)    0.35                39
 03/02/2020   19:45:28   (  68.74,-117.14) 03/02/2020   19:44:51  (  68.74,-117.13)    0.69                37