Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 12 20.  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)
 12/20/2022   11:49:57   (  72.81,   1.80) 12/20/2022   11:51:09  (  72.70,   2.39)   23.37                72
 12/20/2022   12:40:36   ( -72.53, 169.70) 12/20/2022   12:40:36  ( -72.53, 169.72)    1.03                 0
 12/20/2022   13:31:15   (  72.12, -22.16) 12/20/2022   13:30:04  (  72.20, -23.22)   37.00                71
 12/23/2022   00:44:53   (  72.55, 168.62) 12/23/2022   00:45:19  (  72.56, 168.58)    1.47                26
 12/23/2022   01:35:36   ( -72.47, -23.90) 12/23/2022   01:34:44  ( -72.49, -23.89)    2.79                52
 12/25/2022   12:49:08   ( -72.60, 167.49) 12/25/2022   12:50:03  ( -72.62, 167.49)    2.42                55
 12/25/2022   13:39:53   (  72.50, -25.00) 12/25/2022   13:39:27  (  72.51, -25.07)    2.34                26
 12/28/2022   00:53:30   (  72.95, 165.72) 12/28/2022   00:54:41  (  72.83, 166.68)   34.03                71
 12/28/2022   01:44:07   ( -72.55, -26.13) 12/28/2022   01:44:10  ( -72.55, -26.20)    2.27                 3
 12/28/2022   02:34:48   (  72.25, 141.78) 12/28/2022   02:33:36  (  72.33, 141.06)   25.74                72
 12/30/2022   13:48:24   (  72.60, -27.28) 12/30/2022   13:48:51  (  72.63, -27.24)    2.96                27
 12/30/2022   14:39:07   ( -72.50, 140.24) 12/30/2022   14:38:17  ( -72.51, 140.19)    1.93                50
 01/02/2023   01:52:39   ( -72.65, -28.41) 01/02/2023   01:53:35  ( -72.63, -28.44)    2.75                56
 01/02/2023   02:43:24   (  72.57, 139.07) 01/02/2023   02:42:58  (  72.57, 139.10)    1.21                26