Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 5 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/27/2020   10:07:38   (  -0.03,-128.20) (   0.45,-130.31)  240.62                80
 05/28/2020   09:46:13   (  -0.04,-128.18) (  -0.58,-125.78)  273.57                80
 05/29/2020   22:10:49   (   0.02,-128.13) (  -0.64,-131.07)  334.84                80
 05/30/2020   21:49:24   (   0.03,-128.12) (   0.40,-126.55)  179.60                80
 06/01/2020   10:13:52   (  -0.00,-128.11) (   0.79,-131.81)  421.35                80
 06/02/2020   09:52:26   (  -0.02,-128.08) (  -0.18,-127.27)   92.40                80
 06/04/2020   21:58:17   (   0.01,-128.00) (   0.00,-128.03)    3.80                80
 06/07/2020   10:01:20   (  -0.01,-127.96) (   0.15,-128.77)   92.21                80
 06/08/2020   09:39:54   (  -0.02,-127.93) (  -0.83,-124.23)  420.85                80