Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 7 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)
 07/08/2019   06:19:20   (  69.37,  83.60) 07/08/2019   06:20:30  (  69.27,  84.73)   45.59                70
 07/08/2019   07:09:52   ( -68.79,-108.28) 07/08/2019   07:10:06  ( -68.77,-108.27)    2.12                14
 07/08/2019   08:00:35   (  68.67,  59.20) 07/08/2019   07:59:33  (  68.66,  59.23)    1.51                62
 07/10/2019   22:35:47   (  69.43,-160.59) 07/10/2019   22:36:56  (  69.33,-159.31)   51.53                69
 07/10/2019   23:26:19   ( -68.79,   7.60) 07/10/2019   23:26:34  ( -68.78,   7.62)    1.26                15
 07/11/2019   00:17:02   (  68.67, 175.08) 07/11/2019   00:16:01  (  68.67, 175.12)    1.84                61
 07/13/2019   14:52:14   (  69.43, -44.72) 07/13/2019   14:53:24  (  69.33, -43.42)   51.89                70
 07/13/2019   15:42:46   ( -68.80, 123.48) 07/13/2019   15:43:02  ( -68.79, 123.51)    1.30                16
 07/13/2019   16:33:29   (  68.68, -69.04) 07/13/2019   16:32:29  (  68.67, -68.99)    2.22                60
 07/16/2019   07:08:42   (  69.49,  71.08) 07/16/2019   07:09:51  (  69.38,  72.53)   57.71                69
 07/16/2019   07:59:13   ( -68.80,-120.64) 07/16/2019   07:59:30  ( -68.79,-120.61)    1.75                17
 07/16/2019   08:49:56   (  68.68,  46.83) 07/16/2019   08:48:57  (  68.66,  46.88)    2.88                59
 07/18/2019   23:25:08   (  69.50,-173.04) 07/18/2019   23:26:17  (  69.43,-171.53)   59.55                69
 07/19/2019   00:15:39   ( -68.80,  -4.76) 07/19/2019   00:15:57  ( -68.78,  -4.74)    3.03                18
 07/19/2019   01:06:21   (  68.64, 162.78) 07/19/2019   01:05:24  (  68.65, 162.76)    2.27                57