Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2021 3 1.  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)
 03/02/2021   07:38:26   (  70.05,  64.08) 03/02/2021   07:39:35  (  69.94,  65.50)   55.57                69
 03/02/2021   08:28:57   ( -69.40,-127.63) 03/02/2021   08:29:13  ( -69.38,-127.62)    2.07                16
 03/02/2021   09:19:40   (  69.26,  39.89) 03/02/2021   09:18:40  (  69.28,  39.89)    2.12                60
 03/04/2021   23:54:51   (  70.30, 179.63) 03/04/2021   23:55:58  (  70.18,-178.27)   80.04                67
 03/05/2021   00:45:18   ( -69.43, -11.74) 03/05/2021   00:45:40  ( -69.41, -11.70)    2.55                22
 03/05/2021   01:36:01   (  69.29, 155.76) 03/05/2021   01:35:07  (  69.30, 155.80)    1.76                54
 03/07/2021   17:01:38   ( -69.41, 104.22) 03/07/2021   17:02:07  ( -69.44, 104.21)    3.17                29
 03/07/2021   17:52:22   (  69.33, -88.36) 03/07/2021   17:51:34  (  69.32, -88.29)    2.75                48
 03/10/2021   09:17:58   ( -69.44,-139.89) 03/10/2021   09:18:33  ( -69.45,-139.88)    1.52                35
 03/10/2021   10:08:41   (  69.32,  27.59) 03/10/2021   10:08:00  (  69.34,  27.61)    2.28                41
 03/13/2021   01:34:19   ( -69.48, -24.01) 03/13/2021   01:35:00  ( -69.47, -23.99)    1.43                41
 03/13/2021   02:25:02   (  69.36, 143.47) 03/13/2021   02:24:27  (  69.35, 143.50)    1.83                35
 03/15/2021   17:50:39   ( -69.46,  91.94) 03/15/2021   17:51:27  ( -69.47,  91.90)    2.16                48
 03/15/2021   18:41:22   (  69.35,-100.58) 03/15/2021   18:40:54  (  69.35,-100.62)    1.22                28