Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 1 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/28/2023   10:24:17   (   0.03,-128.27) (  -0.47,-126.05)  253.37                80
 01/29/2023   22:46:50   (  -0.03,-128.25) (  -0.76,-131.48)  368.19                80
 01/30/2023   22:25:50   (  -0.04,-128.25) (   0.23,-127.04)  138.59                80
 02/01/2023   10:48:15   (   0.04,-128.29) (   0.97,-132.44)  473.00                80
 02/02/2023   10:32:35   (   0.04,-128.29) (  -0.02,-127.99)   33.77                80
 02/04/2023   22:36:48   (  -0.05,-128.26) (  -0.18,-128.99)   81.71                80
 02/05/2023   22:15:47   (  -0.05,-128.26) (   0.82,-124.54)  424.59                80
 02/07/2023   10:38:11   (   0.05,-128.29) (   0.44,-129.93)  188.09                80
 02/08/2023   10:22:31   (   0.05,-128.28) (  -0.57,-125.49)  318.34                80
 02/09/2023   22:45:03   (  -0.05,-128.26) (  -0.67,-130.92)  303.54                80
 02/10/2023   22:24:03   (  -0.05,-128.25) (   0.34,-126.47)  202.34                80