Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 4 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/09/2020   10:07:43   (  -0.22,-127.54) (   0.41,-130.36)  321.70                80
 04/10/2020   09:46:18   (  -0.24,-127.50) (  -0.60,-125.83)  189.56                80
 04/11/2020   22:10:54   (   0.21,-127.45) (  -0.60,-131.13)  419.14                80
 04/12/2020   21:49:30   (   0.22,-127.41) (   0.42,-126.60)   92.36                80
 04/15/2020   09:55:12   (  -0.21,-127.27) (  -0.18,-127.32)    6.51                80
 04/17/2020   21:55:44   (   0.19,-127.17) (   0.00,-128.09)  105.16                80
 04/18/2020   21:36:59   (   0.20,-127.12) (   1.02,-123.56)  406.07                80
 04/20/2020   10:01:25   (  -0.17,-127.03) (   0.24,-128.81)  203.51                80
 04/21/2020   09:40:01   (  -0.19,-126.98) (  -0.78,-124.28)  306.95                80