Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 5 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/18/2022   10:12:29   (   0.07,-127.61) (  -0.37,-125.75)  211.88                80
 05/19/2022   22:32:16   (  -0.05,-127.55) (  -0.85,-131.16)  411.35                80
 05/20/2022   22:16:32   (  -0.06,-127.51) (   0.13,-126.71)   92.35                80
 05/23/2022   10:17:47   (   0.05,-127.40) (   0.10,-127.63)   26.17                80
 05/24/2022   10:02:02   (   0.07,-127.35) (  -0.89,-123.17)  477.19                80
 05/25/2022   22:21:49   (  -0.04,-127.29) (  -0.32,-128.58)  146.48                80
 05/26/2022   22:06:05   (  -0.05,-127.25) (   0.67,-124.12)  357.14                80
 05/28/2022   10:25:44   (   0.02,-127.18) (   0.55,-129.50)  264.84                80
 05/29/2022   10:10:00   (   0.03,-127.13) (  -0.44,-125.04)  238.01                80
 05/30/2022   22:29:47   (  -0.00,-127.06) (  -0.75,-130.46)  387.58                80
 05/31/2022   22:14:03   (  -0.01,-127.01) (   0.24,-126.00)  115.40                80