Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 2 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)
 02/07/2020   15:36:21   (  68.84, -55.03) 02/07/2020   15:37:07  (  68.82, -55.06)    2.35                46
 02/07/2020   16:27:02   ( -68.74, 112.42) 02/07/2020   16:26:37  ( -68.72, 112.43)    2.92                25
 02/10/2020   07:52:46   (  68.86,  60.84) 02/10/2020   07:53:39  (  68.86,  60.84)    0.76                53
 02/10/2020   08:43:27   ( -68.76,-131.69) 02/10/2020   08:43:09  ( -68.75,-131.66)    1.54                18
 02/10/2020   09:33:57   (  67.89,  36.73) 02/10/2020   09:32:49  (  67.92,  34.98)   73.35                68
 02/13/2020   00:09:11   (  68.89, 176.71) 02/13/2020   00:10:11  (  68.89, 176.74)    1.43                60
 02/13/2020   00:59:52   ( -68.78, -15.82) 02/13/2020   00:59:41  ( -68.79, -15.75)    3.01                11
 02/13/2020   01:50:27   (  68.19, 152.26) 02/13/2020   01:49:16  (  68.23, 151.21)   43.71                71
 02/15/2020   16:25:34   (  68.87, -67.36) 02/15/2020   16:26:43  (  68.86, -67.43)    3.02                69
 02/15/2020   17:16:15   ( -68.75, 100.12) 02/15/2020   17:16:13  ( -68.76, 100.08)    2.55                 2
 02/15/2020   18:06:55   (  68.43, -92.15) 02/15/2020   18:05:43  (  68.48, -92.62)   19.85                72
 02/18/2020   08:42:02   (  69.06,  48.27) 02/18/2020   08:43:13  (  68.99,  48.61)   15.35                71
 02/18/2020   09:32:40   ( -68.78,-144.01) 02/18/2020   09:32:45  ( -68.79,-144.02)    1.93                 5
 02/18/2020   10:23:24   (  68.69,  23.42) 02/18/2020   10:22:12  (  68.67,  23.48)    2.86                72