Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 7 11.  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)
 07/13/2019   14:52:15   (  69.48, -44.78) 07/13/2019   14:53:24  (  69.35, -43.41)   55.56                69
 07/13/2019   15:42:46   ( -68.79, 123.49) 07/13/2019   15:43:02  ( -68.80, 123.51)    1.17                16
 07/13/2019   16:33:29   (  68.67, -69.03) 07/13/2019   16:32:29  (  68.68, -68.98)    2.66                60
 07/16/2019   07:08:42   (  69.48,  71.10) 07/16/2019   07:09:51  (  69.42,  72.56)   57.34                69
 07/16/2019   07:59:13   ( -68.79,-120.62) 07/16/2019   07:59:30  ( -68.81,-120.59)    3.20                17
 07/16/2019   08:49:56   (  68.67,  46.85) 07/16/2019   08:48:58  (  68.64,  46.85)    2.96                58
 07/18/2019   23:25:10   (  69.53,-173.09) 07/18/2019   23:26:19  (  69.43,-171.54)   61.37                69
 07/19/2019   00:15:40   ( -68.79,  -4.73) 07/19/2019   00:15:59  ( -68.77,  -4.75)    1.50                19
 07/19/2019   01:06:23   (  68.67, 162.74) 07/19/2019   01:05:26  (  68.65, 162.74)    1.40                57
 07/21/2019   15:41:37   (  69.58, -57.28) 07/21/2019   15:42:45  (  69.50, -55.57)   67.17                68
 07/21/2019   16:32:06   ( -68.78, 111.15) 07/21/2019   16:32:26  ( -68.79, 111.15)    0.70                20
 07/21/2019   17:22:49   (  68.67, -81.38) 07/21/2019   17:21:53  (  68.67, -81.36)    0.77                56
 07/24/2019   07:58:05   (  69.63,  58.53) 07/24/2019   07:59:13  (  69.51,  60.33)   71.18                68
 07/24/2019   08:48:33   ( -68.78,-132.96) 07/24/2019   08:48:54  ( -68.80,-132.95)    2.47                21
 07/24/2019   09:39:16   (  68.66,  34.51) 07/24/2019   09:38:21  (  68.68,  34.54)    2.13                55