Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 9 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/10/2023   18:12:47   (   0.36, 118.50) (   0.19, 119.40)  102.41                80
 09/12/2023   06:38:01   (  -0.34, 116.87) (  -1.04, 113.91)  338.12                80
 09/13/2023   06:17:01   (  -0.35, 115.83) (   0.18, 118.32)  283.64                80
 09/14/2023   18:42:06   (   0.33, 114.26) (   0.62, 112.86)  158.23                80
 09/15/2023   18:21:06   (   0.35, 113.22) (  -0.60, 117.27)  463.29                80
 09/17/2023   06:43:39   (  -0.33, 111.58) (  -0.30, 111.80)   24.59                80
 09/18/2023   19:08:43   (   0.31, 109.99) (   1.16, 106.35)  414.91                80
 09/19/2023   18:47:43   (   0.33, 108.94) (  -0.07, 110.76)  207.26                80
 09/21/2023   07:12:57   (  -0.31, 107.31) (  -0.75, 105.27)  231.91                80
 09/22/2023   06:51:56   (  -0.32, 106.25) (   0.43, 109.69)  391.45                80
 09/23/2023   19:17:01   (   0.30, 104.65) (   0.38, 104.23)   47.31                80