Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 7 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/21/2022   10:31:35   (  -0.29,-128.30) (   0.20,-130.51)  251.83                80
 07/22/2022   10:15:50   (  -0.28,-128.27) (  -0.77,-126.04)  254.37                80
 07/23/2022   22:35:37   (   0.32,-128.23) (  -0.42,-131.46)  367.87                80
 07/24/2022   22:19:52   (   0.31,-128.21) (   0.60,-127.00)  138.23                80
 07/26/2022   10:39:30   (  -0.34,-128.19) (   0.62,-132.37)  477.58                80
 07/27/2022   10:23:45   (  -0.33,-128.16) (  -0.41,-127.92)   28.03                80
 07/29/2022   22:25:07   (   0.35,-128.07) (   0.18,-128.87)   90.18                80
 07/30/2022   22:09:22   (   0.33,-128.05) (   1.15,-124.40)  415.42                80
 08/01/2022   10:28:59   (  -0.36,-128.02) (   0.06,-129.78)  200.56                80
 08/02/2022   10:13:14   (  -0.35,-127.99) (  -0.97,-125.32)  304.58                80
 08/03/2022   22:33:01   (   0.38,-127.92) (  -0.28,-130.73)  320.24                80