Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 8 27.  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)
 08/28/2019   04:22:16   ( -68.82, -66.47) 08/28/2019   04:23:04  ( -68.84, -66.48)    2.43                48
 08/28/2019   05:13:00   (  68.69, 101.01) 08/28/2019   05:12:32  (  68.68, 100.97)    1.90                28
 08/28/2019   06:03:24   ( -67.68, -90.39) 08/28/2019   06:02:17  ( -67.73, -92.53)   90.77                67
 08/30/2019   20:38:43   ( -68.84,  49.39) 08/30/2019   20:39:32  ( -68.85,  49.41)    1.29                49
 08/30/2019   21:29:27   (  68.72,-143.14) 08/30/2019   21:29:00  (  68.69,-143.14)    3.04                27
 08/30/2019   22:19:52   ( -67.76,  25.40) 08/30/2019   22:18:44  ( -67.80,  23.42)   83.43                68
 09/02/2019   12:55:09   ( -68.87, 165.24) 09/02/2019   12:55:59  ( -68.86, 165.30)    2.89                50
 09/02/2019   13:45:52   (  68.69, -27.22) 09/02/2019   13:45:27  (  68.70, -27.26)    1.59                25
 09/02/2019   14:36:18   ( -67.79, 141.26) 09/02/2019   14:35:10  ( -67.86, 139.38)   79.35                68
 09/05/2019   05:11:35   ( -68.84, -78.84) 09/05/2019   05:12:27  ( -68.86, -78.81)    2.60                52
 09/05/2019   06:02:19   (  68.72,  88.63) 09/05/2019   06:01:55  (  68.70,  88.63)    2.56                24
 09/05/2019   06:52:46   ( -67.87,-102.96) 09/05/2019   06:51:37  ( -67.92,-104.67)   71.94                69
 09/07/2019   21:28:01   ( -68.82,  37.08) 09/07/2019   21:28:56  ( -68.81,  37.01)    2.96                55
 09/07/2019   22:18:45   (  68.70,-155.45) 09/07/2019   22:18:23  (  68.70,-155.49)    1.48                22
 09/07/2019   23:09:13   ( -67.90,  12.89) 09/07/2019   23:08:04  ( -67.98,  11.28)   67.95                69