Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2025 1 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/18/2025   09:41:24   (   0.03,-104.72) (  -0.31,-103.12)  181.43                80
 01/19/2025   22:03:21   (  -0.03,-104.65) (  -0.90,-108.38)  426.11                80
 01/20/2025   21:47:16   (  -0.03,-104.65) (   0.13,-103.83)   92.94                80
 01/22/2025   10:09:03   (   0.04,-104.73) (   1.02,-109.06)  494.25                80
 01/23/2025   09:47:39   (   0.04,-104.73) (  -0.02,-104.52)   24.48                80
 01/25/2025   21:50:50   (  -0.05,-104.66) (  -0.19,-105.22)   64.83                80
 01/26/2025   21:34:45   (  -0.05,-104.65) (   0.86,-100.68)  453.93                80
 01/28/2025   09:56:32   (   0.06,-104.73) (   0.34,-105.89)  133.57                80
 01/29/2025   09:35:07   (   0.06,-104.73) (  -0.70,-101.35)  385.01                80
 01/30/2025   21:57:02   (  -0.07,-104.65) (  -0.52,-106.60)  223.10                80
 01/31/2025   21:40:58   (  -0.07,-104.65) (   0.54,-102.06)  295.76                80