Simultaneous Nadir Overpasses (SNOs) between FY3D and METOP-C
TLE Epoch: 2022 12 8.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(METOP-C) METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2022   20:50:31   ( -75.11,  41.11) 12/21/2022   20:51:36  ( -75.05,  44.54)   98.30                65
 12/21/2022   21:41:13   (  74.89,-150.93) 12/21/2022   21:42:21  (  74.85,-148.70)   64.91                68
 12/21/2022   22:31:55   ( -74.74,  16.79) 12/21/2022   22:33:06  ( -74.65,  18.07)   39.04                71
 12/21/2022   23:22:37   (  74.51,-175.28) 12/21/2022   23:23:50  (  74.49,-175.02)    8.32                73
 12/22/2022   00:13:21   ( -74.47,  -7.84) 12/22/2022   00:14:32  ( -74.44,  -7.83)    3.42                71
 12/22/2022   01:04:07   (  74.43, 159.56) 12/22/2022   01:05:13  (  74.42, 159.46)    3.10                66
 12/22/2022   01:54:52   ( -74.43, -33.13) 12/22/2022   01:55:54  ( -74.41, -33.23)    3.55                62