Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 7 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/08/2023   01:45:30   (   0.29,-175.51) (   0.46,-174.83)   76.98                80
 07/09/2023   14:10:37   (  -0.32,-177.07) (   0.41, 179.71)  367.25                80
 07/10/2023   13:49:38   (  -0.30,-178.09) (  -0.79,-175.88)  251.42                80
 07/12/2023   02:14:53   (   0.33,-179.66) (  -0.06, 178.62)  196.17                80
 07/13/2023   01:53:53   (   0.31, 179.33) (   1.15,-176.97)  422.36                80
 07/14/2023   14:19:01   (  -0.34, 177.77) (  -0.29, 177.57)   22.76                80
 07/16/2023   02:41:36   (   0.37, 176.21) (  -0.55, 172.08)  471.59                80
 07/17/2023   02:20:37   (   0.35, 175.20) (   0.65, 176.49)  146.53                80
 07/18/2023   14:45:44   (  -0.39, 173.65) (   0.19, 171.02)  298.50                80
 07/19/2023   14:24:44   (  -0.36, 172.64) (  -1.02, 175.43)  319.35                80