Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 12 14.  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   11:41:20   (  72.50,   4.52) 12/15/2022   11:41:42  (  72.52,   4.48)    2.95                22
 12/15/2022   12:32:03   ( -72.43, 171.98) 12/15/2022   12:31:08  ( -72.42, 171.94)    1.92                55
 12/17/2022   23:45:36   ( -72.59,   3.31) 12/17/2022   23:46:28  ( -72.56,   3.33)    3.14                52
 12/18/2022   00:36:21   (  72.48, 170.85) 12/18/2022   00:35:51  (  72.49, 170.86)    1.42                30
 12/20/2022   11:49:58   (  72.85,   1.73) 12/20/2022   11:51:09  (  72.72,   2.43)   27.09                71
 12/20/2022   12:40:36   ( -72.51, 169.74) 12/20/2022   12:40:37  ( -72.50, 169.68)    2.37                 1
 12/20/2022   13:31:16   (  72.15, -22.23) 12/20/2022   13:30:05  (  72.16, -23.27)   35.66                71
 12/23/2022   00:44:54   (  72.58, 168.56) 12/23/2022   00:45:19  (  72.59, 168.64)    3.01                25
 12/23/2022   01:35:37   ( -72.49, -23.94) 12/23/2022   01:34:45  ( -72.48, -23.91)    1.19                52
 12/25/2022   12:49:08   ( -72.61, 167.47) 12/25/2022   12:50:03  ( -72.62, 167.49)    1.60                55
 12/25/2022   13:39:53   (  72.52, -25.03) 12/25/2022   13:39:27  (  72.50, -25.08)    2.21                26
 12/28/2022   00:53:31   (  72.95, 165.71) 12/28/2022   00:54:42  (  72.84, 166.70)   34.76                71
 12/28/2022   01:44:08   ( -72.55, -26.13) 12/28/2022   01:44:11  ( -72.57, -26.17)    2.29                 3