Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 3 16.  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)
 03/16/2022   03:54:47   (  71.08, 121.13) 03/16/2022   03:55:33  (  71.06, 121.08)    3.03                46
 03/16/2022   04:45:29   ( -70.99, -71.40) 03/16/2022   04:45:02  ( -70.99, -71.40)    0.07                27
 03/18/2022   19:21:54   ( -71.11,  69.33) 03/18/2022   19:22:31  ( -71.11,  69.39)    2.06                37
 03/18/2022   20:12:39   (  70.97,-123.13) 03/18/2022   20:11:59  (  70.95,-123.21)    3.40                40
 03/21/2022   10:49:04   (  71.08,  17.60) 03/21/2022   10:49:27  (  71.10,  17.63)    2.89                23
 03/21/2022   11:39:46   ( -70.98,-174.92) 03/21/2022   11:38:57  ( -70.99,-174.92)    0.38                49
 03/24/2022   01:25:39   (  71.70, 157.41) 03/24/2022   01:26:48  (  71.62, 159.07)   58.74                69
 03/24/2022   02:16:11   ( -71.09, -34.16) 03/24/2022   02:16:26  ( -71.08, -34.18)    1.14                15
 03/24/2022   03:06:56   (  70.95, 133.36) 03/24/2022   03:05:53  (  70.97, 133.30)    2.64                63
 03/26/2022   16:52:40   ( -71.39, 106.24) 03/26/2022   16:53:52  ( -71.31, 106.80)   21.73                72
 03/26/2022   17:43:22   (  71.11, -85.97) 03/26/2022   17:43:21  (  71.09, -85.90)    2.90                 1
 03/26/2022   18:34:04   ( -71.00,  81.53) 03/26/2022   18:32:51  ( -70.98,  81.56)    2.16                73
 03/29/2022   08:19:46   (  71.20,  54.80) 03/29/2022   08:20:48  (  71.20,  54.88)    3.18                62
 03/29/2022   09:10:28   ( -71.08,-137.69) 03/29/2022   09:10:18  ( -71.10,-137.66)    1.91                10