Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 2 3.  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)
 02/04/2020   23:19:56   (  68.81,-170.89) 02/04/2020   23:20:35  (  68.81,-170.95)    2.46                39
 02/05/2020   00:10:37   ( -68.71,  -3.43) 02/05/2020   00:10:05  ( -68.70,  -3.45)    1.67                32
 02/07/2020   15:36:21   (  68.82, -55.01) 02/07/2020   15:37:07  (  68.83, -55.05)    2.12                46
 02/07/2020   16:27:02   ( -68.72, 112.46) 02/07/2020   16:26:37  ( -68.73, 112.45)    1.40                25
 02/10/2020   07:52:46   (  68.84,  60.87) 02/10/2020   07:53:39  (  68.86,  60.84)    2.19                53
 02/10/2020   08:43:27   ( -68.73,-131.66) 02/10/2020   08:43:09  ( -68.76,-131.65)    3.30                18
 02/10/2020   09:33:57   (  67.87,  36.76) 02/10/2020   09:32:49  (  67.92,  34.98)   74.59                68
 02/13/2020   00:09:10   (  68.86, 176.75) 02/13/2020   00:10:10  (  68.87, 176.73)    1.75                60
 02/13/2020   00:59:51   ( -68.74, -15.77) 02/13/2020   00:59:41  ( -68.72, -15.83)    2.99                10
 02/13/2020   01:50:26   (  68.16, 152.30) 02/13/2020   01:49:15  (  68.21, 151.20)   45.99                71
 02/15/2020   16:25:35   (  68.88, -67.38) 02/15/2020   16:26:42  (  68.89, -67.39)    0.63                67
 02/15/2020   17:16:16   ( -68.75, 100.11) 02/15/2020   17:16:13  ( -68.74, 100.05)    2.86                 3
 02/15/2020   18:06:55   (  68.39, -92.10) 02/15/2020   18:05:43  (  68.45, -92.65)   23.38                72