Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 5 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/03/2023   11:17:35   (   0.11,-142.43) (  -0.68,-138.83)  410.39                80
 05/04/2023   23:42:47   (  -0.09,-143.12) (  -0.36,-144.28)  132.44                80
 05/05/2023   23:21:46   (  -0.10,-143.59) (   0.76,-139.85)  426.20                80
 05/07/2023   11:46:48   (   0.07,-144.32) (   0.27,-145.27)  107.26                80
 05/08/2023   11:25:46   (   0.09,-144.78) (  -0.79,-140.82)  450.59                80
 05/09/2023   23:50:58   (  -0.06,-145.45) (  -0.22,-146.28)   94.40                80
 05/10/2023   23:29:55   (  -0.08,-145.90) (   0.85,-141.84)  463.17                80
 05/12/2023   11:54:58   (   0.06,-146.62) (   0.19,-147.25)   71.68                80
 05/13/2023   11:33:55   (   0.08,-147.07) (  -0.89,-142.81)  485.62                80
 05/14/2023   23:59:07   (  -0.05,-147.73) (  -0.17,-148.26)   60.04                80
 05/15/2023   23:38:04   (  -0.07,-148.18) (   0.91,-143.82)  497.14                80