Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 7 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/16/2023   02:41:46   (   0.37, 176.25) (   0.00, 171.96)  479.62                80
 07/17/2023   02:20:36   (   0.35, 175.25) (   0.62, 176.50)  142.14                80
 07/18/2023   14:45:43   (  -0.38, 173.71) (   0.22, 171.03)  305.56                80
 07/19/2023   14:24:44   (  -0.36, 172.71) (  -0.99, 175.44)  311.56                80
 07/21/2023   02:49:59   (   0.39, 171.15) (   0.14, 169.95)  136.90                80
 07/22/2023   02:28:59   (   0.37, 170.15) (   1.30, 174.37)  480.53                80
 07/23/2023   14:51:26   (  -0.39, 168.62) (  -0.47, 168.90)   32.95                80
 07/25/2023   03:16:41   (   0.42, 167.06) (  -0.38, 163.41)  415.95                80
 07/26/2023   02:55:41   (   0.40, 166.06) (   0.78, 167.83)  201.18                80
 07/27/2023   15:20:48   (  -0.43, 164.53) (   0.04, 162.36)  246.51                80
 07/28/2023   14:59:48   (  -0.41, 163.53) (  -1.13, 166.78)  369.91                80