Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 4 13.  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)
 04/15/2021   10:01:49   (  -0.00,-128.01) (   0.15,-128.86)   95.23                80
 04/16/2021   09:40:25   (  -0.01,-127.98) (  -0.84,-124.32)  416.95                80
 04/17/2021   22:02:21   (   0.00,-127.93) (  -0.39,-129.62)  193.05                80
 04/18/2021   21:46:17   (   0.01,-127.90) (   0.66,-125.10)  319.49                80
 04/20/2021   10:08:05   (   0.01,-127.85) (   0.58,-130.36)  286.68                80
 04/21/2021   09:46:41   (   0.00,-127.81) (  -0.47,-125.84)  224.82                80
 04/22/2021   22:08:38   (  -0.01,-127.74) (  -0.76,-131.14)  387.38                80
 04/23/2021   21:52:33   (  -0.01,-127.70) (   0.23,-126.61)  124.61                80
 04/25/2021   10:14:21   (   0.02,-127.66) (   0.95,-131.88)  481.06                80
 04/26/2021   09:52:57   (   0.01,-127.61) (  -0.04,-127.35)   29.85                80