Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 12.  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)
 04/14/2020   15:17:16   ( -69.23, 129.34) 04/14/2020   15:18:27  ( -69.11, 130.02)   30.55                71
 04/14/2020   16:07:53   (  68.77, -62.71) 04/14/2020   16:07:58  (  68.78, -62.75)    1.88                 5
 04/14/2020   16:58:34   ( -68.64, 104.77) 04/14/2020   16:57:28  ( -68.67, 104.74)    3.02                66
 04/17/2020   07:33:41   ( -69.28,-114.83) 04/17/2020   07:34:52  ( -69.21,-113.95)   35.38                71
 04/17/2020   08:24:17   (  68.76,  53.20) 04/17/2020   08:24:25  (  68.77,  53.13)    3.01                 8
 04/17/2020   09:14:59   ( -68.69,-139.39) 04/17/2020   09:13:55  ( -68.66,-139.37)    3.27                64
 04/19/2020   23:50:07   ( -69.38,   0.94) 04/19/2020   23:51:17  ( -69.31,   2.07)   45.17                70
 04/20/2020   00:40:42   (  68.81, 169.04) 04/20/2020   00:40:51  (  68.81, 169.07)    1.10                 9
 04/20/2020   01:31:23   ( -68.69, -23.47) 04/20/2020   01:30:21  ( -68.70, -23.43)    2.30                62
 04/22/2020   16:06:32   ( -69.48, 116.69) 04/22/2020   16:07:41  ( -69.39, 118.07)   54.78                69
 04/22/2020   16:57:05   (  68.81, -75.05) 04/22/2020   16:57:16  (  68.83, -75.01)    3.36                11
 04/22/2020   17:47:46   ( -68.68,  92.44) 04/22/2020   17:46:47  ( -68.67,  92.43)    1.09                59
 04/25/2020   08:22:57   ( -69.54,-127.47) 04/25/2020   08:24:06  ( -69.47,-125.94)   60.34                69
 04/25/2020   09:13:29   (  68.80,  40.86) 04/25/2020   09:13:43  (  68.79,  40.84)    1.49                14
 04/25/2020   10:04:10   ( -68.68,-151.65) 04/25/2020   10:03:13  ( -68.69,-151.66)    1.30                57