Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 4 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 04/02/2021   10:46:00   (  -0.04,-137.20) (   0.57,-139.82)  298.85                80
 04/03/2021   10:24:36   (  -0.04,-137.19) (  -0.48,-135.30)  216.21                80
 04/04/2021   22:46:33   (   0.03,-137.18) (  -0.75,-140.59)  389.80                80
 04/05/2021   22:30:29   (   0.03,-137.17) (   0.30,-136.08)  125.18                80
 04/07/2021   10:52:17   (  -0.02,-137.15) (   0.90,-141.35)  478.27                80
 04/08/2021   10:30:53   (  -0.02,-137.13) (  -0.09,-136.81)   36.45                80
 04/10/2021   22:34:06   (   0.02,-137.11) (  -0.08,-137.60)   55.48                80
 04/11/2021   22:18:01   (   0.02,-137.09) (   0.91,-133.06)  459.03                80
 04/13/2021   10:39:50   (  -0.02,-137.06) (   0.28,-138.34)  145.23                80
 04/14/2021   10:18:26   (  -0.02,-137.05) (  -0.77,-133.82)  368.76                80