Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 12 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/22/2022   22:40:43   (   0.01,-127.38) (  -0.84,-131.06)  420.41                80
 12/23/2022   22:22:24   (   0.00,-127.41) (   0.15,-126.62)   89.45                80
 12/26/2022   10:29:11   (  -0.01,-127.58) (  -0.02,-127.61)    3.88                80
 12/28/2022   22:33:27   (   0.01,-127.59) (  -0.20,-128.61)  116.26                80
 12/29/2022   22:12:28   (   0.01,-127.62) (   0.79,-124.17)  393.34                80
 12/31/2022   10:34:54   (  -0.02,-127.75) (   0.38,-129.58)  209.12                80
 01/01/2023   10:19:15   (  -0.01,-127.78) (  -0.62,-125.14)  300.57                80
 01/02/2023   22:41:49   (   0.01,-127.75) (  -0.65,-130.57)  322.35                80
 01/03/2023   22:20:49   (   0.01,-127.78) (   0.36,-126.14)  186.77                80