Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 1 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/25/2023   22:17:06   (  -0.02,-121.25) (  -0.84,-124.75)  399.98                80
 01/26/2023   21:58:43   (  -0.02,-120.10) (  -0.03,-120.27)   18.68                80
 01/27/2023   21:42:58   (  -0.02,-118.95) (   0.72,-115.77)  362.73                80
 01/29/2023   10:02:37   (   0.02,-117.17) (   0.89,-121.08)  444.95                80
 01/30/2023   09:44:12   (   0.02,-116.02) (   0.14,-116.58)   63.77                80
 01/31/2023   09:28:28   (   0.02,-114.86) (  -0.62,-112.08)  317.16                80
 02/01/2023   21:48:14   (  -0.03,-113.10) (  -1.00,-117.42)  493.29                80
 02/02/2023   21:29:50   (  -0.03,-111.94) (  -0.24,-112.93)  112.21                80
 02/03/2023   21:14:05   (  -0.03,-110.78) (   0.52,-108.43)  268.70                80
 02/06/2023   09:15:18   (   0.04,-107.85) (   0.37,-109.23)  158.10                80
 02/07/2023   08:59:33   (   0.04,-106.69) (  -0.40,-104.74)  222.86                80