Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 4 6.  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)
 04/06/2021   22:08:32   (   0.02,-128.23) (  -0.61,-131.12)  329.43                80
 04/07/2021   21:52:28   (   0.03,-128.21) (   0.39,-126.59)  184.63                80
 04/09/2021   10:14:16   (  -0.01,-128.17) (   0.81,-131.86)  420.81                80
 04/10/2021   09:52:52   (  -0.02,-128.14) (  -0.18,-127.33)   92.40                80
 04/12/2021   21:58:45   (   0.02,-128.10) (   0.00,-128.11)    1.90                80
 04/15/2021   10:01:48   (  -0.02,-128.03) (   0.19,-128.85)   93.64                80
 04/16/2021   09:40:25   (  -0.02,-128.00) (  -0.86,-124.33)  418.82                80
 04/17/2021   22:02:21   (   0.01,-127.96) (  -0.37,-129.63)  190.56                80
 04/18/2021   21:46:17   (   0.02,-127.93) (   0.63,-125.10)  322.28                80