Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 9 2.  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)
 09/02/2019   12:55:09   ( -68.84, 165.28) 09/02/2019   12:56:00  ( -68.82, 165.26)    2.38                51
 09/02/2019   13:45:53   (  68.71, -27.24) 09/02/2019   13:45:27  (  68.72, -27.22)    1.44                26
 09/02/2019   14:36:19   ( -67.81, 141.23) 09/02/2019   14:35:11  ( -67.82, 139.34)   79.57                68
 09/05/2019   05:11:35   ( -68.81, -78.80) 09/05/2019   05:12:28  ( -68.82, -78.86)    2.74                53
 09/05/2019   06:02:20   (  68.74,  88.61) 09/05/2019   06:01:55  (  68.72,  88.66)    2.79                25
 09/05/2019   06:52:46   ( -67.84,-102.91) 09/05/2019   06:51:38  ( -67.88,-104.72)   75.70                68
 09/07/2019   21:28:01   ( -68.84,  37.06) 09/07/2019   21:28:55  ( -68.82,  37.02)    2.69                54
 09/07/2019   22:18:45   (  68.71,-155.47) 09/07/2019   22:18:22  (  68.71,-155.47)    0.04                23
 09/07/2019   23:09:13   ( -67.92,  12.87) 09/07/2019   23:08:04  ( -67.93,  11.23)   68.87                69
 09/10/2019   13:44:28   ( -68.87, 152.90) 09/10/2019   13:45:22  ( -68.87, 152.96)    2.27                54
 09/10/2019   14:35:11   (  68.69, -39.55) 09/10/2019   14:34:50  (  68.70, -39.60)    2.51                21
 09/10/2019   15:25:40   ( -67.95, 128.73) 09/10/2019   15:24:31  ( -67.98, 127.16)   65.25                69
 09/13/2019   06:00:54   ( -68.84, -91.18) 09/13/2019   06:01:50  ( -68.85, -91.17)    1.31                56
 09/13/2019   06:51:38   (  68.72,  76.30) 09/13/2019   06:51:17  (  68.74,  76.33)    2.77                21
 09/13/2019   07:42:07   ( -67.98,-115.42) 09/13/2019   07:40:58  ( -68.02,-116.90)   61.82                69
 09/15/2019   22:17:20   ( -68.82,  24.74) 09/15/2019   22:18:18  ( -68.84,  24.69)    2.91                58
 09/15/2019   23:08:04   (  68.70,-167.79) 09/15/2019   23:07:45  (  68.72,-167.81)    2.54                19
 09/15/2019   23:58:35   ( -68.06,   0.36) 09/15/2019   23:57:24  ( -68.12,  -0.91)   52.93                71