Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 8 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/18/2023   16:57:14   (   0.43, 142.36) (   1.24, 138.77)  409.43                80
 08/19/2023   16:36:14   (   0.43, 141.35) (  -0.01, 143.17)  208.51                80
 08/21/2023   05:01:28   (  -0.43, 139.75) (  -0.89, 137.69)  234.01                80
 08/22/2023   04:40:29   (  -0.42, 138.72) (   0.37, 142.09)  384.91                80
 08/23/2023   17:05:33   (   0.42, 137.19) (   0.53, 136.65)   61.26                80
 08/26/2023   05:07:08   (  -0.41, 134.57) (  -0.16, 135.57)  114.48                80
 08/27/2023   17:32:12   (   0.41, 133.03) (   1.05, 130.13)  330.67                80
 08/28/2023   17:11:12   (   0.40, 132.01) (  -0.15, 134.54)  288.14                80
 08/30/2023   05:36:26   (  -0.40, 130.40) (  -0.73, 129.06)  154.19                80
 08/31/2023   05:15:27   (  -0.40, 129.37) (   0.53, 133.46)  466.18                80