Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 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)
 09/08/2023   06:11:24   (  -0.37, 121.07) (  -0.51, 120.43)   73.32                80
 09/10/2023   18:12:47   (   0.36, 118.49) (   0.17, 119.39)  103.16                80
 09/12/2023   06:38:02   (  -0.34, 116.86) (  -1.02, 113.91)  337.14                80
 09/13/2023   06:17:01   (  -0.35, 115.82) (   0.20, 118.32)  284.87                80
 09/14/2023   18:42:06   (   0.33, 114.24) (   0.66, 112.87)  156.28                80
 09/15/2023   18:21:05   (   0.35, 113.20) (  -0.56, 117.28)  465.51                80
 09/17/2023   06:43:39   (  -0.33, 111.56) (  -0.27, 111.79)   26.97                80
 09/18/2023   19:08:44   (   0.31, 109.96) (   1.14, 106.35)  411.81                80
 09/19/2023   18:47:43   (   0.33, 108.91) (  -0.09, 110.76)  210.63                80
 09/21/2023   07:12:56   (  -0.31, 107.27) (  -0.78, 105.28)  228.33                80