Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 8 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/13/2022   10:07:45   (   0.39,-128.07) (  -0.44,-124.43)  415.99                80
 08/14/2022   22:30:12   (  -0.40,-128.05) (  -0.81,-129.83)  202.65                80
 08/15/2022   22:14:27   (  -0.40,-128.06) (   0.22,-125.38)  306.11                80
 08/17/2022   10:36:43   (   0.41,-128.09) (   1.02,-130.74)  302.15                80
 08/18/2022   10:15:39   (   0.40,-128.09) (  -0.02,-126.29)  205.55                80
 08/19/2022   22:38:05   (  -0.40,-128.05) (  -1.23,-131.69)  415.36                80
 08/20/2022   22:22:21   (  -0.40,-128.05) (  -0.19,-127.24)   92.72                80
 08/23/2022   10:26:13   (   0.39,-128.07) (   0.40,-128.15)    8.53                80
 08/24/2022   10:05:07   (   0.38,-128.06) (  -0.58,-123.69)  498.48                80
 08/25/2022   22:27:33   (  -0.39,-128.01) (  -0.65,-129.09)  124.19                80
 08/26/2022   22:11:49   (  -0.38,-128.00) (   0.39,-124.64)  383.44                80