Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2021 2 26.  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)
 02/27/2021   15:22:01   (  69.80, -51.47) 02/27/2021   15:23:12  (  69.69, -50.71)   31.48                71
 02/27/2021   16:12:36   ( -69.36, 116.49) 02/27/2021   16:12:46  ( -69.36, 116.47)    0.86                10
 02/27/2021   17:03:20   (  69.27, -76.06) 02/27/2021   17:02:13  (  69.25, -76.02)    2.73                67
 03/02/2021   07:38:26   (  70.05,  64.09) 03/02/2021   07:39:35  (  69.94,  65.51)   55.56                69
 03/02/2021   08:28:57   ( -69.39,-127.62) 03/02/2021   08:29:13  ( -69.39,-127.60)    0.74                16
 03/02/2021   09:19:40   (  69.25,  39.89) 03/02/2021   09:18:40  (  69.28,  39.90)    3.17                60
 03/04/2021   23:54:51   (  70.30, 179.63) 03/04/2021   23:55:58  (  70.19,-178.26)   80.38                67
 03/05/2021   00:45:18   ( -69.42, -11.73) 03/05/2021   00:45:40  ( -69.42, -11.68)    2.07                22
 03/05/2021   01:36:01   (  69.29, 155.76) 03/05/2021   01:35:07  (  69.31, 155.81)    2.50                54
 03/07/2021   17:01:37   ( -69.41, 104.22) 03/07/2021   17:02:07  ( -69.39, 104.16)    3.15                30
 03/07/2021   17:52:20   (  69.28, -88.29) 03/07/2021   17:51:34  (  69.27, -88.35)    2.76                46
 03/10/2021   09:17:58   ( -69.45,-139.90) 03/10/2021   09:18:33  ( -69.46,-139.87)    2.43                35
 03/10/2021   10:08:41   (  69.33,  27.58) 03/10/2021   10:08:00  (  69.34,  27.62)    2.38                41