Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 6 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/07/2020   22:09:16   (  -0.00,-127.93) (  -0.45,-129.98)  233.55                80
 06/08/2020   21:52:59   (   0.01,-127.91) (   0.55,-125.40)  285.34                80
 06/10/2020   10:14:29   (   0.01,-127.88) (   0.63,-130.59)  308.35                80
 06/11/2020   09:52:53   (   0.00,-127.85) (  -0.44,-126.02)  210.01                80
 06/12/2020   22:14:32   (  -0.02,-127.78) (  -0.78,-131.24)  393.12                80
 06/13/2020   21:58:15   (  -0.01,-127.76) (   0.22,-126.65)  125.65                80
 06/15/2020   10:19:44   (   0.03,-127.74) (   0.95,-131.84)  467.69                80
 06/16/2020   09:58:09   (   0.02,-127.70) (  -0.11,-127.27)   50.36                80
 06/18/2020   22:00:51   (  -0.02,-127.59) (  -0.10,-127.90)   36.42                80
 06/19/2020   21:44:35   (  -0.01,-127.55) (   0.97,-123.33)  481.47                80