Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-20
TLE Epoch: 2021 6 28.  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)
 06/28/2021   10:11:59   (  -0.00,-128.32) (   0.83,-132.04)  423.50                80
 06/29/2021   09:55:55   (   0.01,-128.30) (  -0.18,-127.51)   90.76                80
 07/01/2021   21:56:26   (  -0.00,-128.17) (   0.00,-128.28)   12.48                80
 07/04/2021   09:59:29   (  -0.01,-128.20) (   0.19,-129.02)   93.58                80
 07/05/2021   09:43:25   (  -0.00,-128.17) (  -0.82,-124.49)  420.15                80
 07/06/2021   22:02:41   (   0.02,-128.05) (  -0.37,-129.79)  198.63                80
 07/07/2021   21:46:37   (   0.01,-128.02) (   0.65,-125.26)  314.94                80
 07/09/2021   10:05:45   (  -0.03,-128.06) (   0.51,-130.54)  281.69                80
 07/10/2021   09:49:39   (  -0.02,-128.03) (  -0.45,-126.00)  231.31                80
 07/11/2021   22:08:56   (   0.04,-127.89) (  -0.73,-131.30)  389.01                80