Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 5 9.  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)
 05/10/2022   13:52:13   (  71.97, -29.32) 05/10/2022   13:53:22  (  71.85, -27.62)   60.35                69
 05/10/2022   14:42:46   ( -71.34, 139.15) 05/10/2022   14:42:59  ( -71.35, 139.19)    1.37                13
 05/10/2022   15:33:30   (  71.23, -53.34) 05/10/2022   15:32:26  (  71.25, -53.33)    2.22                64
 05/13/2022   05:19:13   ( -71.69, -80.53) 05/13/2022   05:20:25  ( -71.57, -79.85)   27.38                72
 05/13/2022   06:09:52   (  71.32,  87.44) 05/13/2022   06:09:55  (  71.30,  87.37)    3.09                 3
 05/13/2022   07:00:36   ( -71.26,-105.14) 05/13/2022   06:59:24  ( -71.24,-105.10)    2.07                72
 05/15/2022   20:46:13   (  71.42,-131.80) 05/15/2022   20:47:22  (  71.40,-131.87)    3.27                69
 05/15/2022   21:36:57   ( -71.35,  35.64) 05/15/2022   21:36:51  ( -71.34,  35.66)    1.28                 6
 05/15/2022   22:27:34   (  70.88,-156.24) 05/15/2022   22:26:23  (  70.96,-157.29)   39.15                71
 05/18/2022   12:13:19   ( -71.45, 176.40) 05/18/2022   12:14:19  ( -71.43, 176.41)    2.43                60
 05/18/2022   13:04:03   (  71.35, -16.11) 05/18/2022   13:03:46  (  71.32, -16.12)    3.43                17
 05/18/2022   13:54:34   ( -70.60, 152.47) 05/18/2022   13:53:26  ( -70.66, 150.49)   73.38                68
 05/21/2022   03:40:25   (  71.46, 124.64) 05/21/2022   03:41:13  (  71.44, 124.68)    2.38                48
 05/21/2022   04:31:08   ( -71.33, -67.83) 05/21/2022   04:30:43  ( -71.33, -67.86)    1.27                25