Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 12 13.  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)
 12/15/2022   11:41:21   (  72.55,   4.43) 12/15/2022   11:41:42  (  72.53,   4.49)    2.68                21
 12/15/2022   12:32:03   ( -72.42, 172.00) 12/15/2022   12:31:08  ( -72.43, 171.95)    1.66                55
 12/17/2022   23:45:36   ( -72.58,   3.33) 12/17/2022   23:46:28  ( -72.57,   3.35)    1.51                52
 12/18/2022   00:36:21   (  72.47, 170.86) 12/18/2022   00:35:51  (  72.49, 170.87)    2.80                30
 12/20/2022   11:49:58   (  72.84,   1.74) 12/20/2022   11:51:09  (  72.72,   2.44)   26.24                71
 12/20/2022   12:40:36   ( -72.50, 169.76) 12/20/2022   12:40:37  ( -72.51, 169.69)    2.54                 1
 12/20/2022   13:31:16   (  72.14, -22.21) 12/20/2022   13:30:05  (  72.17, -23.26)   35.93                71
 12/23/2022   00:44:54   (  72.57, 168.58) 12/23/2022   00:45:20  (  72.54, 168.55)    3.33                26
 12/23/2022   01:35:37   ( -72.48, -23.92) 12/23/2022   01:34:45  ( -72.49, -23.90)    0.85                52
 12/25/2022   12:49:08   ( -72.60, 167.49) 12/25/2022   12:50:03  ( -72.62, 167.49)    2.56                55
 12/25/2022   13:39:53   (  72.51, -25.02) 12/25/2022   13:39:27  (  72.50, -25.08)    2.23                26