Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 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)
 04/22/2020   16:06:33   ( -69.52, 116.64) 04/22/2020   16:07:42  ( -69.44, 118.13)   58.62                69
 04/22/2020   16:57:06   (  68.83, -75.08) 04/22/2020   16:57:18  (  68.83, -75.02)    2.68                12
 04/22/2020   17:47:46   ( -68.67,  92.46) 04/22/2020   17:46:49  ( -68.66,  92.41)    2.01                57
 04/25/2020   08:22:58   ( -69.63,-127.61) 04/25/2020   08:24:06  ( -69.54,-125.84)   69.36                68
 04/25/2020   09:13:29   (  68.84,  40.82) 04/25/2020   09:13:44  (  68.82,  40.87)    2.43                15
 04/25/2020   10:04:09   ( -68.67,-151.64) 04/25/2020   10:03:15  ( -68.66,-151.70)    2.90                54
 04/28/2020   00:39:24   ( -69.74, -11.87) 04/28/2020   00:40:31  ( -69.64,  -9.81)   80.14                67
 04/28/2020   01:29:52   (  68.79, 156.79) 04/28/2020   01:30:11  (  68.81, 156.74)    3.10                19
 04/28/2020   02:20:33   ( -68.68, -35.74) 04/28/2020   02:19:41  ( -68.71, -35.75)    3.36                52
 04/30/2020   16:55:49   ( -69.80, 103.95) 04/30/2020   16:56:56  ( -69.74, 106.21)   87.39                67
 04/30/2020   17:46:17   (  68.85, -87.39) 04/30/2020   17:46:37  (  68.85, -87.32)    2.80                20
 04/30/2020   18:36:57   ( -68.69,  80.16) 04/30/2020   18:36:08  ( -68.69,  80.12)    1.67                49
 05/03/2020   09:12:15   ( -69.92,-140.32) 05/03/2020   09:13:21  ( -69.83,-137.77)   98.16                66
 05/03/2020   10:02:40   (  68.81,  28.58) 05/03/2020   10:03:04  (  68.83,  28.55)    2.76                24
 05/03/2020   10:53:21   ( -68.70,-163.95) 05/03/2020   10:52:35  ( -68.68,-164.01)    3.37                46