Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 12 18.  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   11:49:58   (  72.85,   1.71) 12/20/2022   11:51:09  (  72.71,   2.41)   28.00                71
 12/20/2022   12:40:36   ( -72.52, 169.72) 12/20/2022   12:40:36  ( -72.54, 169.75)    2.63                 0
 12/20/2022   13:31:15   (  72.11, -22.14) 12/20/2022   13:30:04  (  72.21, -23.19)   37.60                71
 12/23/2022   00:44:53   (  72.59, 168.53) 12/23/2022   00:45:18  (  72.58, 168.61)    3.19                25
 12/23/2022   01:35:35   ( -72.46, -23.87) 12/23/2022   01:34:44  ( -72.46, -23.95)    2.57                51
 12/25/2022   12:49:07   ( -72.59, 167.51) 12/25/2022   12:50:03  ( -72.59, 167.43)    2.72                56
 12/25/2022   13:39:53   (  72.54, -25.08) 12/25/2022   13:39:26  (  72.53, -25.03)    2.42                27
 12/28/2022   00:53:31   (  72.99, 165.63) 12/28/2022   00:54:41  (  72.85, 166.73)   38.76                70
 12/28/2022   01:44:08   ( -72.59, -26.21) 12/28/2022   01:44:10  ( -72.58, -26.14)    2.57                 2
 12/28/2022   02:34:48   (  72.24, 141.80) 12/28/2022   02:33:37  (  72.30, 141.01)   27.45                71
 12/30/2022   13:48:24   (  72.60, -27.26) 12/30/2022   13:48:52  (  72.61, -27.28)    1.65                28
 12/30/2022   14:39:08   ( -72.54, 140.16) 12/30/2022   14:38:17  ( -72.54, 140.25)    3.01                51