Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 4 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 04/07/2021   21:52:28   (   0.03,-128.21) (   0.40,-126.59)  184.59                80
 04/09/2021   10:14:16   (  -0.01,-128.16) (   0.80,-131.86)  420.98                80
 04/10/2021   09:52:52   (  -0.02,-128.14) (  -0.20,-127.33)   92.15                80
 04/12/2021   21:56:05   (   0.02,-128.10) (   0.01,-128.11)    1.64                80
 04/15/2021   10:01:49   (  -0.01,-128.03) (   0.18,-128.85)   94.13                80
 04/16/2021   09:40:25   (  -0.02,-127.99) (  -0.87,-124.33)  418.24                80
 04/17/2021   22:02:21   (   0.01,-127.95) (  -0.36,-129.63)  191.20                80
 04/18/2021   21:46:17   (   0.01,-127.92) (   0.64,-125.10)  321.57                80
 04/20/2021   10:08:05   (  -0.00,-127.87) (   0.56,-130.37)  284.40                80