Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 9 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/08/2022   10:31:27   (   0.35,-127.80) (   0.66,-129.26)  166.12                80
 09/09/2022   10:10:21   (   0.35,-127.77) (  -0.33,-124.80)  339.43                80
 09/10/2022   22:32:47   (  -0.34,-127.68) (  -0.93,-130.19)  286.91                80
 09/11/2022   22:17:02   (  -0.35,-127.66) (   0.11,-125.74)  219.41                80
 09/13/2022   10:39:19   (   0.33,-127.68) (   1.09,-131.11)  390.68                80
 09/14/2022   10:18:14   (   0.34,-127.65) (   0.10,-126.65)  114.79                80
 09/16/2022   22:22:14   (  -0.33,-127.52) (  -0.35,-127.59)    7.76                80
 09/17/2022   22:06:28   (  -0.33,-127.49) (   0.64,-123.13)  497.76                80
 09/19/2022   10:28:47   (   0.31,-127.51) (   0.51,-128.51)  113.31                80
 09/20/2022   10:07:41   (   0.32,-127.47) (  -0.48,-124.05)  391.38                80
 09/21/2022   22:30:06   (  -0.30,-127.35) (  -0.75,-129.45)  238.54                80