Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 2 17.  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   08:42:02   (  69.00,  48.36) 02/18/2020   08:43:13  (  68.99,  48.60)    9.66                71
 02/18/2020   09:32:41   ( -68.77,-144.01) 02/18/2020   09:32:45  ( -68.77,-144.04)    1.17                 4
 02/18/2020   10:23:25   (  68.67,  23.43) 02/18/2020   10:22:12  (  68.66,  23.47)    1.91                73
 02/21/2020   00:58:31   (  69.24, 163.93) 02/21/2020   00:59:42  (  69.17, 164.69)   31.01                71
 02/21/2020   01:49:06   ( -68.79, -28.13) 02/21/2020   01:49:17  ( -68.79, -28.16)    1.08                11
 02/21/2020   02:39:50   (  68.70, 139.30) 02/21/2020   02:38:44  (  68.67, 139.34)    3.06                66
 02/23/2020   17:15:00   (  69.53, -80.58) 02/23/2020   17:16:09  (  69.39, -79.15)   58.00                69
 02/23/2020   18:05:30   ( -68.81,  87.74) 02/23/2020   18:05:48  ( -68.80,  87.72)    1.49                18
 02/23/2020   18:56:13   (  68.67,-104.76) 02/23/2020   18:55:15  (  68.68,-104.79)    1.63                58
 02/26/2020   09:31:29   (  69.77,  34.97) 02/26/2020   09:32:36  (  69.67,  37.09)   82.48                67
 02/26/2020   10:21:55   ( -68.83,-156.38) 02/26/2020   10:22:20  ( -68.80,-156.42)    3.22                25
 02/26/2020   11:12:38   (  68.70,  11.11) 02/26/2020   11:11:47  (  68.68,  11.08)    2.09                51
 02/29/2020   02:38:20   ( -68.85, -40.51) 02/29/2020   02:38:51  ( -68.85, -40.48)    1.07                31
 02/29/2020   03:29:03   (  68.73, 126.97) 02/29/2020   03:28:18  (  68.73, 127.01)    1.59                45