Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 4 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/06/2020   22:04:40   (   0.23,-127.66) (  -0.19,-129.64)  224.57                80
 04/07/2020   21:43:16   (   0.25,-127.63) (   0.83,-125.11)  287.52                80
 04/09/2020   10:07:42   (  -0.22,-127.54) (   0.43,-130.36)  321.53                80
 04/10/2020   09:46:18   (  -0.24,-127.50) (  -0.59,-125.83)  189.75                80
 04/11/2020   22:10:54   (   0.21,-127.45) (  -0.62,-131.13)  419.53                80
 04/12/2020   21:49:30   (   0.23,-127.41) (   0.40,-126.60)   91.92                80
 04/15/2020   09:52:32   (  -0.21,-127.27) (  -0.22,-127.33)    6.99                80
 04/17/2020   21:58:23   (   0.19,-127.16) (  -0.02,-128.09)  105.69                80
 04/18/2020   21:36:59   (   0.20,-127.12) (   1.01,-123.56)  405.47                80