Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2025 4 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)
 04/19/2025   22:12:50   (   0.01,-104.38) (  -0.95,-108.51)  471.57                80
 04/20/2025   21:56:42   (   0.01,-104.38) (   0.13,-103.96)   48.85                80
 04/23/2025   09:59:35   (  -0.00,-104.36) (   0.02,-104.59)   25.57                80
 04/24/2025   09:38:07   (  -0.00,-104.35) (  -1.01,-100.02)  494.69                80
 04/25/2025   21:59:56   (   0.00,-104.36) (  -0.22,-105.25)  101.45                80
 04/26/2025   21:43:47   (   0.00,-104.36) (   0.81,-100.68)  419.01                80
 04/28/2025   10:05:29   (  -0.00,-104.35) (   0.35,-105.88)  175.06                80
 04/29/2025   09:44:00   (  -0.00,-104.34) (  -0.69,-101.32)  344.76                80
 04/30/2025   22:05:49   (   0.00,-104.33) (  -0.53,-106.54)  252.56                80
 05/01/2025   21:49:41   (   0.00,-104.33) (   0.52,-101.98)  267.71                80