Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 8 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)
 08/02/2019   10:12:00   (  -0.28,-128.29) (   0.53,-131.96)  417.82                80
 08/03/2019   09:55:55   (  -0.27,-128.31) (  -0.48,-127.43)  100.75                80
 08/05/2019   21:59:07   (   0.28,-128.33) (   0.28,-128.19)   14.69                80
 08/08/2019   09:59:31   (  -0.29,-128.39) (  -0.14,-128.94)   62.90                80
 08/09/2019   09:43:26   (  -0.28,-128.40) (  -1.16,-124.41)  455.07                80
 08/10/2019   22:02:44   (   0.30,-128.39) (   0.00,-129.72)  150.87                80
 08/11/2019   21:46:39   (   0.30,-128.41) (   1.02,-125.19)  366.92                80
 08/13/2019   10:05:48   (  -0.32,-128.45) (   0.13,-130.46)  229.36                80
 08/14/2019   09:49:43   (  -0.31,-128.46) (  -0.88,-125.93)  288.13                80