Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 1 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/30/2022   10:14:26   (  -0.02,-128.30) (   0.74,-131.81)  399.82                80
 01/31/2022   09:53:00   (  -0.02,-128.29) (  -0.26,-127.27)  115.99                80
 02/01/2022   22:14:54   (   0.03,-128.29) (  -0.91,-132.57)  487.89                80
 02/02/2022   21:58:48   (   0.02,-128.28) (   0.09,-128.03)   28.11                80
 02/05/2022   10:01:46   (  -0.02,-128.23) (   0.09,-128.75)   59.43                80
 02/06/2022   09:40:20   (  -0.02,-128.22) (  -0.91,-124.21)  456.16                80
 02/07/2022   22:02:14   (   0.02,-128.21) (  -0.25,-129.51)  147.78                80
 02/08/2022   21:46:08   (   0.01,-128.20) (   0.76,-124.97)  367.82                80
 02/10/2022   10:07:52   (   0.01,-128.15) (   0.48,-130.22)  235.80                80
 02/11/2022   09:46:26   (   0.01,-128.13) (  -0.52,-125.68)  279.11                80
 02/12/2022   22:08:20   (  -0.01,-128.12) (  -0.63,-130.98)  326.37                80