Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2021 2 4.  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)
 02/06/2021   05:11:11   (  69.35, 101.74) 02/06/2021   05:11:42  (  69.35, 101.79)    2.35                31
 02/06/2021   06:01:51   ( -69.21, -90.73) 02/06/2021   06:01:12  ( -69.23, -90.72)    3.01                39
 02/08/2021   21:27:31   (  69.32,-142.29) 02/08/2021   21:28:09  (  69.35,-142.32)    3.29                38
 02/08/2021   22:18:12   ( -69.22,  25.18) 02/08/2021   22:17:39  ( -69.24,  25.17)    1.93                33
 02/11/2021   13:43:52   (  69.35, -26.39) 02/11/2021   13:44:36  (  69.35, -26.44)    2.05                44
 02/11/2021   14:34:32   ( -69.24, 141.08) 02/11/2021   14:34:05  ( -69.24, 141.06)    1.00                27
 02/14/2021   06:00:12   (  69.37,  89.51) 02/14/2021   06:01:01  (  69.40,  89.51)    2.82                49
 02/14/2021   06:50:53   ( -69.26,-103.02) 02/14/2021   06:50:32  ( -69.24,-103.07)    3.06                21
 02/14/2021   07:41:20   (  68.25,  65.66) 02/14/2021   07:40:14  (  68.28,  63.39)   93.79                66
 02/16/2021   22:16:33   (  69.40,-154.60) 02/16/2021   22:17:28  (  69.39,-154.62)    1.66                55
 02/16/2021   23:07:14   ( -69.28,  12.88) 02/16/2021   23:06:58  ( -69.29,  12.88)    0.56                16
 02/16/2021   23:57:45   (  68.49,-178.72) 02/16/2021   23:56:36  (  68.55, 179.59)   68.84                69