Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 6.  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)
 04/06/2020   14:27:58   ( -68.89, 142.10) 04/06/2020   14:29:10  ( -68.90, 142.09)    1.46                72
 04/06/2020   15:18:41   (  68.75, -50.41) 04/06/2020   15:18:38  (  68.74, -50.47)    2.85                 3
 04/06/2020   16:09:21   ( -68.56, 117.16) 04/06/2020   16:08:09  ( -68.57, 116.96)    8.16                72
 04/09/2020   06:44:25   ( -69.04,-102.21) 04/09/2020   06:45:36  ( -68.98,-101.92)   13.52                71
 04/09/2020   07:35:05   (  68.74,  65.51) 04/09/2020   07:35:05  (  68.76,  65.45)    2.84                 0
 04/09/2020   08:25:47   ( -68.66,-127.07) 04/09/2020   08:24:35  ( -68.65,-127.05)    1.71                72
 04/11/2020   23:00:51   ( -69.14,  13.55) 04/11/2020   23:02:02  ( -69.05,  14.07)   22.66                71
 04/11/2020   23:51:30   (  68.79,-178.65) 04/11/2020   23:51:32  (  68.77,-178.64)    2.16                 2
 04/12/2020   00:42:11   ( -68.66, -11.16) 04/12/2020   00:41:02  ( -68.67, -11.14)    1.19                69
 04/14/2020   15:17:16   ( -69.25, 129.31) 04/14/2020   15:18:27  ( -69.13, 130.05)   32.09                71
 04/14/2020   16:07:53   (  68.79, -62.74) 04/14/2020   16:07:58  (  68.79, -62.74)    0.41                 5
 04/14/2020   16:58:34   ( -68.66, 104.75) 04/14/2020   16:57:28  ( -68.68, 104.77)    3.09                66
 04/17/2020   07:33:42   ( -69.35,-114.93) 04/17/2020   07:34:52  ( -69.25,-113.90)   42.21                70
 04/17/2020   08:24:17   (  68.79,  53.16) 04/17/2020   08:24:25  (  68.80,  53.17)    0.95                 8
 04/17/2020   09:14:58   ( -68.66,-139.34) 04/17/2020   09:13:56  ( -68.64,-139.39)    2.77                62
 04/19/2020   23:50:08   ( -69.46,   0.82) 04/19/2020   23:51:17  ( -69.37,   2.15)   53.03                69
 04/20/2020   00:40:41   (  68.79, 169.07) 04/20/2020   00:40:52  (  68.81, 169.07)    1.62                11
 04/20/2020   01:31:22   ( -68.66, -23.44) 04/20/2020   01:30:23  ( -68.65, -23.49)    2.40                59