Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 1 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/31/2023   09:28:27   (   0.04,-114.84) (  -0.59,-112.08)  314.80                80
 02/01/2023   21:48:14   (  -0.04,-113.07) (  -1.04,-117.41)  495.89                80
 02/02/2023   21:29:49   (  -0.05,-111.92) (  -0.28,-112.92)  114.46                80
 02/03/2023   21:14:05   (  -0.05,-110.76) (   0.48,-108.42)  266.74                80
 02/06/2023   09:15:19   (   0.06,-107.84) (   0.36,-109.24)  158.70                80
 02/07/2023   08:59:34   (   0.06,-106.69) (  -0.40,-104.74)  222.53                80
 02/09/2023   21:00:55   (  -0.06,-103.77) (  -0.49,-105.58)  206.50                80
 02/10/2023   20:45:10   (  -0.06,-102.61) (   0.29,-101.08)  174.90                80
 02/13/2023   08:46:24   (   0.07, -99.70) (   0.54,-101.90)  250.16                80