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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/05/2020   09:40:04   (  -0.26,-127.70) (  -1.02,-124.34)  383.20                80
 04/06/2020   22:04:41   (   0.23,-127.66) (  -0.18,-129.64)  224.76                80
 04/07/2020   21:43:16   (   0.25,-127.62) (   0.83,-125.11)  287.30                80
 04/09/2020   10:07:42   (  -0.22,-127.54) (   0.43,-130.36)  321.61                80
 04/10/2020   09:46:18   (  -0.24,-127.50) (  -0.59,-125.83)  189.62                80
 04/11/2020   22:10:54   (   0.21,-127.45) (  -0.61,-131.13)  419.91                80
 04/12/2020   21:49:30   (   0.23,-127.40) (   0.41,-126.60)   91.49                80
 04/15/2020   09:55:12   (  -0.21,-127.27) (  -0.17,-127.32)    7.32                80
 04/17/2020   21:58:23   (   0.19,-127.16) (  -0.01,-128.09)  106.32                80