Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 4 26.  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)
 04/28/2020   00:39:23   ( -69.70, -11.81) 04/28/2020   00:40:31  ( -69.62,  -9.85)   76.55                68
 04/28/2020   01:29:52   (  68.80, 156.78) 04/28/2020   01:30:11  (  68.79, 156.72)    2.43                19
 04/28/2020   02:20:33   ( -68.69, -35.76) 04/28/2020   02:19:41  ( -68.68, -35.79)    1.90                52
 04/30/2020   16:55:49   ( -69.82, 103.93) 04/30/2020   16:56:56  ( -69.72, 106.18)   87.16                67
 04/30/2020   17:46:17   (  68.85, -87.39) 04/30/2020   17:46:37  (  68.83, -87.34)    3.26                20
 04/30/2020   18:36:57   ( -68.70,  80.14) 04/30/2020   18:36:07  ( -68.72,  80.16)    3.07                50
 05/03/2020   09:12:15   ( -69.93,-140.33) 05/03/2020   09:13:21  ( -69.81,-137.80)   97.76                66
 05/03/2020   10:02:40   (  68.81,  28.58) 05/03/2020   10:03:04  (  68.82,  28.53)    2.07                24
 05/03/2020   10:53:21   ( -68.70,-163.96) 05/03/2020   10:52:34  ( -68.71,-163.97)    0.83                47
 05/06/2020   02:19:05   (  68.87, 144.40) 05/06/2020   02:19:30  (  68.85, 144.47)    3.30                25
 05/06/2020   03:09:45   ( -68.71, -48.06) 05/06/2020   03:09:01  ( -68.69, -48.10)    2.41                44
 05/08/2020   18:35:27   (  68.83, -99.63) 05/08/2020   18:35:56  (  68.83, -99.67)    1.46                29
 05/08/2020   19:26:08   ( -68.72,  67.83) 05/08/2020   19:25:26  ( -68.73,  67.84)    0.94                42