Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 4 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/06/2022   22:23:30   (  -0.11,-128.41) (  -0.37,-129.43)  116.41                80
 04/07/2022   22:07:47   (  -0.12,-128.41) (   0.64,-124.98)  391.29                80
 04/09/2022   10:30:06   (   0.12,-128.40) (   0.57,-130.36)  223.60                80
 04/10/2022   10:09:03   (   0.12,-128.40) (  -0.44,-125.91)  283.64                80
 04/11/2022   22:31:32   (  -0.12,-128.40) (  -0.77,-131.33)  334.04                80
 04/12/2022   22:15:49   (  -0.13,-128.40) (   0.23,-126.88)  173.22                80
 04/14/2022   10:38:07   (   0.12,-128.38) (   1.02,-132.25)  441.94                80
 04/15/2022   10:17:03   (   0.13,-128.37) (   0.01,-127.80)   64.89                80
 04/17/2022   22:21:09   (  -0.12,-128.36) (  -0.20,-128.78)   47.52                80
 04/18/2022   22:05:25   (  -0.12,-128.34) (   0.76,-124.31)  458.87                80