Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 4 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/01/2020   21:58:26   (   0.26,-127.85) (   0.20,-128.14)   32.33                80
 04/02/2020   21:39:42   (   0.27,-127.82) (   1.22,-123.61)  479.93                80
 04/04/2020   10:01:29   (  -0.25,-127.74) (  -0.01,-128.87)  128.87                80
 04/05/2020   09:40:04   (  -0.26,-127.69) (  -1.03,-124.34)  382.73                80
 04/06/2020   22:04:40   (   0.23,-127.65) (  -0.23,-129.63)  226.03                80
 04/07/2020   21:43:15   (   0.25,-127.61) (   0.79,-125.10)  285.78                80
 04/09/2020   10:07:43   (  -0.22,-127.53) (   0.42,-130.36)  323.04                80
 04/10/2020   09:46:18   (  -0.24,-127.48) (  -0.60,-125.83)  187.97                80
 04/11/2020   22:10:54   (   0.21,-127.42) (  -0.60,-131.13)  422.27                80
 04/12/2020   21:49:30   (   0.23,-127.38) (   0.42,-126.60)   88.94                80