Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 4 15.  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)
 04/16/2022   19:39:01   (  71.89,-116.06) 04/16/2022   19:40:09  (  71.75,-114.26)   64.18                68
 04/16/2022   20:29:32   ( -71.19,  52.52) 04/16/2022   20:29:47  ( -71.20,  52.47)    2.43                15
 04/16/2022   21:20:17   (  71.09,-140.00) 04/16/2022   21:19:14  (  71.10,-140.04)    1.98                63
 04/19/2022   11:06:02   ( -71.68,-167.44) 04/19/2022   11:07:12  ( -71.59,-166.31)   40.85                70
 04/19/2022   11:56:40   (  71.24,   0.68) 04/19/2022   11:56:44  (  71.22,   0.74)    2.75                 4
 04/19/2022   12:47:22   ( -71.10, 168.23) 04/19/2022   12:46:14  ( -71.10, 168.18)    1.89                68
 04/22/2022   02:33:03   (  71.34, 141.43) 04/22/2022   02:34:15  (  71.32, 141.49)    2.52                72
 04/22/2022   03:23:45   ( -71.19, -50.99) 04/22/2022   03:23:45  ( -71.21, -51.06)    3.19                 0
 04/22/2022   04:14:26   (  70.90, 116.81) 04/22/2022   04:13:14  (  70.99, 116.25)   22.89                72
 04/24/2022   18:00:09   ( -71.34,  89.68) 04/24/2022   18:01:15  ( -71.35,  89.76)    3.34                66
 04/24/2022   18:50:53   (  71.21,-102.79) 04/24/2022   18:50:43  (  71.19,-102.85)    3.26                10
 04/24/2022   19:41:29   ( -70.75,  65.31) 04/24/2022   19:40:18  ( -70.81,  64.19)   41.56                71
 04/27/2022   09:27:16   (  71.32,  37.95) 04/27/2022   09:28:13  (  71.31,  37.94)    1.19                57
 04/27/2022   10:17:59   ( -71.21,-154.55) 04/27/2022   10:17:43  ( -71.21,-154.59)    1.90                16