Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 4 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)
 04/10/2022   10:09:03   (   0.12,-128.40) (  -0.46,-125.91)  283.75                80
 04/11/2022   22:31:32   (  -0.12,-128.40) (  -0.76,-131.33)  333.78                80
 04/12/2022   22:15:48   (  -0.12,-128.40) (   0.19,-126.87)  173.53                80
 04/14/2022   10:38:07   (   0.12,-128.38) (   1.00,-132.25)  441.74                80
 04/15/2022   10:17:04   (   0.12,-128.37) (  -0.01,-127.80)   65.06                80
 04/17/2022   22:21:09   (  -0.12,-128.36) (  -0.24,-128.77)   47.22                80
 04/18/2022   22:05:25   (  -0.12,-128.35) (   0.78,-124.32)  459.22                80
 04/20/2022   10:25:04   (   0.12,-128.31) (   0.41,-129.70)  157.62                80
 04/21/2022   10:09:20   (   0.12,-128.29) (  -0.54,-125.24)  348.06                80
 04/22/2022   22:29:09   (  -0.12,-128.27) (  -0.64,-130.66)  272.67                80
 04/23/2022   22:13:25   (  -0.12,-128.25) (   0.33,-126.20)  233.08                80