Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 12 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)
 12/17/2022   23:45:36   ( -72.57,   3.35) 12/17/2022   23:46:28  ( -72.58,   3.37)    1.29                52
 12/18/2022   00:36:20   (  72.45, 170.89) 12/18/2022   00:35:51  (  72.46, 170.80)    2.92                29
 12/20/2022   11:49:57   (  72.83,   1.76) 12/20/2022   11:51:08  (  72.74,   2.46)   25.21                71
 12/20/2022   12:40:36   ( -72.55, 169.67) 12/20/2022   12:40:36  ( -72.52, 169.71)    3.27                 0
 12/20/2022   13:31:15   (  72.13, -22.19) 12/20/2022   13:30:04  (  72.18, -23.24)   36.14                71
 12/23/2022   00:44:53   (  72.57, 168.59) 12/23/2022   00:45:19  (  72.55, 168.56)    1.95                26
 12/23/2022   01:35:36   ( -72.48, -23.92) 12/23/2022   01:34:44  ( -72.49, -23.89)    1.61                52
 12/25/2022   12:49:08   ( -72.61, 167.48) 12/25/2022   12:50:03  ( -72.63, 167.50)    2.31                55
 12/25/2022   13:39:53   (  72.51, -25.02) 12/25/2022   13:39:27  (  72.51, -25.07)    1.62                26
 12/28/2022   00:53:31   (  72.95, 165.71) 12/28/2022   00:54:42  (  72.84, 166.70)   34.83                71
 12/28/2022   01:44:08   ( -72.55, -26.13) 12/28/2022   01:44:11  ( -72.56, -26.17)    1.72                 3