Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 7 5.  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)
 07/05/2019   14:02:52   (  69.32, -32.22) 07/05/2019   14:04:02  (  69.24, -31.19)   41.42                70
 07/05/2019   14:53:26   ( -68.80, 135.82) 07/05/2019   14:53:38  ( -68.80, 135.88)    2.39                12
 07/05/2019   15:44:08   (  68.62, -56.62) 07/05/2019   15:43:06  (  68.64, -56.68)    3.04                62
 07/08/2019   06:19:20   (  69.38,  83.59) 07/08/2019   06:20:30  (  69.26,  84.72)   46.30                70
 07/08/2019   07:09:52   ( -68.75,-108.22) 07/08/2019   07:10:07  ( -68.77,-108.28)    3.40                15
 07/08/2019   08:00:36   (  68.68,  59.18) 07/08/2019   07:59:34  (  68.65,  59.22)    2.94                62
 07/10/2019   22:35:47   (  69.44,-160.61) 07/10/2019   22:36:56  (  69.33,-159.31)   52.36                69
 07/10/2019   23:26:19   ( -68.80,   7.59) 07/10/2019   23:26:34  ( -68.79,   7.62)    2.26                15
 07/11/2019   00:17:02   (  68.68, 175.06) 07/11/2019   00:16:01  (  68.67, 175.12)    2.85                61
 07/13/2019   14:52:14   (  69.44, -44.73) 07/13/2019   14:53:24  (  69.34, -43.41)   53.00                70
 07/13/2019   15:42:46   ( -68.81, 123.47) 07/13/2019   15:43:02  ( -68.80, 123.52)    2.19                16
 07/13/2019   16:33:28   (  68.63, -68.99) 07/13/2019   16:32:30  (  68.62, -69.05)    2.90                58
 07/16/2019   07:08:42   (  69.51,  71.06) 07/16/2019   07:09:51  (  69.40,  72.55)   59.20                69
 07/16/2019   07:59:13   ( -68.81,-120.65) 07/16/2019   07:59:30  ( -68.81,-120.59)    2.69                17
 07/16/2019   08:49:55   (  68.64,  46.89) 07/16/2019   08:48:58  (  68.63,  46.84)    2.44                57
 07/18/2019   23:25:10   (  69.57,-173.14) 07/18/2019   23:26:18  (  69.46,-171.49)   65.41                68
 07/19/2019   00:15:39   ( -68.77,  -4.70) 07/19/2019   00:15:59  ( -68.76,  -4.77)    2.66                20
 07/19/2019   01:06:22   (  68.65, 162.76) 07/19/2019   01:05:26  (  68.63, 162.72)    2.57                56