Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 2 16.  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)
 02/18/2020   08:42:03   (  69.04,  48.31) 02/18/2020   08:43:13  (  69.01,  48.62)   12.79                70
 02/18/2020   09:32:42   ( -68.81,-144.06) 02/18/2020   09:32:45  ( -68.79,-144.02)    2.14                 3
 02/18/2020   10:23:25   (  68.66,  23.45) 02/18/2020   10:22:12  (  68.68,  23.49)    3.39                73
 02/21/2020   00:58:31   (  69.27, 163.88) 02/21/2020   00:59:42  (  69.13, 164.65)   33.64                71
 02/21/2020   01:49:06   ( -68.82, -28.18) 02/21/2020   01:49:16  ( -68.81, -28.13)    1.92                10
 02/21/2020   02:39:49   (  68.68, 139.33) 02/21/2020   02:38:43  (  68.70, 139.37)    3.12                66
 02/23/2020   17:15:00   (  69.50, -80.55) 02/23/2020   17:16:09  (  69.42, -79.11)   56.88                69
 02/23/2020   18:05:31   ( -68.83,  87.71) 02/23/2020   18:05:48  ( -68.83,  87.75)    1.94                17
 02/23/2020   18:56:14   (  68.70,-104.80) 02/23/2020   18:55:15  (  68.71,-104.75)    2.60                59
 02/26/2020   09:31:30   (  69.79,  34.93) 02/26/2020   09:32:37  (  69.66,  37.07)   83.70                67
 02/26/2020   10:21:56   ( -68.85,-156.41) 02/26/2020   10:22:20  ( -68.84,-156.37)    2.07                24
 02/26/2020   11:12:39   (  68.72,  11.07) 02/26/2020   11:11:47  (  68.72,  11.13)    2.26                52
 02/29/2020   02:38:21   ( -68.87, -40.54) 02/29/2020   02:38:52  ( -68.85, -40.49)    2.52                31
 02/29/2020   03:29:04   (  68.74, 126.94) 02/29/2020   03:28:19  (  68.73, 127.00)    2.91                45