Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 8 16.  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)
 08/18/2020   14:39:49   (  69.71, -41.61) 08/18/2020   14:40:57  (  69.63, -39.90)   66.75                68
 08/18/2020   15:30:18   ( -68.95, 126.79) 08/18/2020   15:30:37  ( -68.97, 126.86)    3.43                19
 08/18/2020   16:21:01   (  68.80, -65.70) 08/18/2020   16:20:05  (  68.81, -65.70)    0.43                56
 08/21/2020   06:56:17   (  69.98,  73.89) 08/21/2020   06:57:23  (  69.86,  76.29)   92.29                66
 08/21/2020   07:46:41   ( -68.96,-117.31) 08/21/2020   07:47:07  ( -68.98,-117.26)    3.10                26
 08/21/2020   08:37:24   (  68.81,  50.21) 08/21/2020   08:36:35  (  68.81,  50.18)    1.14                49
 08/24/2020   00:03:04   ( -68.97,  -1.40) 08/24/2020   00:03:38  ( -68.95,  -1.42)    1.50                34
 08/24/2020   00:53:47   (  68.82, 166.11) 08/24/2020   00:53:05  (  68.84, 166.09)    2.81                42
 08/26/2020   16:19:26   ( -68.98, 114.50) 08/26/2020   16:20:07  ( -69.00, 114.52)    3.16                41
 08/26/2020   17:10:09   (  68.83, -77.99) 08/26/2020   17:09:35  (  68.83, -78.05)    2.60                34
 08/29/2020   08:35:49   ( -68.99,-129.61) 08/29/2020   08:36:38  ( -69.02,-129.59)    3.42                49
 08/29/2020   09:26:33   (  68.89,  37.84) 08/29/2020   09:26:05  (  68.90,  37.91)    3.02                28
 08/29/2020   10:16:58   ( -67.91,-153.57) 08/29/2020   10:15:50  ( -67.97,-155.59)   84.68                68