Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 1 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/28/2022   21:52:40   (   0.03,-128.34) (   0.40,-126.54)  203.50                80
 01/30/2022   10:14:25   (  -0.02,-128.30) (   0.78,-131.80)  399.66                80
 01/31/2022   09:52:59   (  -0.02,-128.29) (  -0.22,-127.26)  116.17                80
 02/01/2022   22:14:53   (   0.03,-128.29) (  -0.95,-132.56)  487.92                80
 02/02/2022   21:58:47   (   0.02,-128.28) (   0.05,-128.02)   28.23                80
 02/05/2022   10:01:46   (  -0.02,-128.23) (   0.12,-128.74)   59.24                80
 02/06/2022   09:40:20   (  -0.02,-128.22) (  -0.94,-124.22)  456.41                80
 02/07/2022   22:02:14   (   0.01,-128.21) (  -0.28,-129.51)  147.66                80
 02/08/2022   21:46:07   (   0.01,-128.20) (   0.72,-124.97)  367.93                80
 02/10/2022   10:07:52   (   0.01,-128.16) (   0.45,-130.23)  235.53                80