Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 1 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/18/2022   10:19:30   (  -0.04,-128.36) (  -0.03,-128.45)    9.95                80
 01/19/2022   10:01:08   (  -0.04,-128.36) (  -1.04,-124.00)  497.19                80
 01/20/2022   22:20:57   (   0.04,-128.36) (  -0.19,-129.42)  121.27                80
 01/21/2022   22:05:15   (   0.04,-128.36) (   0.83,-124.98)  385.74                80
 01/23/2022   10:27:36   (  -0.05,-128.35) (   0.41,-130.37)  229.49                80
 01/24/2022   10:06:34   (  -0.04,-128.35) (  -0.60,-125.92)  277.10                80
 01/25/2022   22:29:03   (   0.05,-128.34) (  -0.61,-131.34)  342.38                80
 01/26/2022   22:13:19   (   0.04,-128.33) (   0.34,-126.89)  163.93                80
 01/28/2022   10:35:42   (  -0.04,-128.32) (   0.84,-132.29)  452.38                80
 01/29/2022   10:14:38   (  -0.03,-128.30) (  -0.11,-127.83)   53.35                80