Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 4 19.  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)
 04/20/2021   10:08:05   (   0.02,-127.85) (   0.55,-130.37)  286.16                80
 04/21/2021   09:46:41   (   0.01,-127.81) (  -0.45,-125.84)  225.40                80
 04/22/2021   22:08:37   (  -0.02,-127.74) (  -0.79,-131.14)  386.77                80
 04/23/2021   21:52:33   (  -0.02,-127.71) (   0.21,-126.60)  125.31                80
 04/25/2021   10:14:21   (   0.03,-127.66) (   0.97,-131.88)  480.17                80
 04/26/2021   09:52:56   (   0.02,-127.62) (  -0.03,-127.35)   30.84                80
 04/28/2021   21:56:09   (  -0.02,-127.49) (  -0.14,-128.13)   72.46                80
 04/29/2021   21:40:05   (  -0.01,-127.44) (   0.86,-123.60)  438.63                80
 05/01/2021   10:01:53   (   0.02,-127.39) (   0.32,-128.87)  167.91                80
 05/02/2021   09:40:29   (   0.01,-127.34) (  -0.68,-124.34)  342.24                80