Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 12 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/24/2023   09:09:06   (   0.02,-104.70) (  -0.35,-103.06)  187.11                80
 12/25/2023   21:31:29   (  -0.02,-104.66) (  -0.90,-108.43)  430.43                80
 12/26/2023   21:15:41   (  -0.02,-104.66) (   0.11,-103.96)   79.85                80
 12/29/2023   09:19:27   (   0.02,-104.70) (   0.07,-104.83)   15.19                80
 12/30/2023   08:58:20   (   0.01,-104.70) (  -1.00,-100.37)  495.24                80
 12/31/2023   21:20:43   (  -0.00,-104.67) (  -0.23,-105.74)  121.88                80
 01/01/2024   21:04:55   (   0.00,-104.68) (   0.79,-101.27)  388.73                80
 01/03/2024   09:27:08   (   0.00,-104.72) (   0.45,-106.60)  215.08                80
 01/04/2024   09:06:00   (  -0.00,-104.72) (  -0.58,-102.13)  295.47                80
 01/05/2024   21:28:22   (  -0.00,-104.69) (  -0.63,-107.51)  321.50                80
 01/06/2024   21:12:35   (  -0.00,-104.69) (   0.40,-103.04)  189.18                80