Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 2 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/20/2019   22:11:15   (   0.02,-128.21) (  -0.64,-131.17)  336.60                80
 02/21/2019   21:49:49   (   0.02,-128.23) (   0.36,-126.63)  182.04                80
 02/23/2019   10:14:16   (  -0.02,-128.33) (   0.81,-131.90)  407.80                80
 02/24/2019   09:52:52   (  -0.02,-128.34) (  -0.24,-127.38)  110.60                80
 02/25/2019   22:17:27   (   0.02,-128.30) (  -0.95,-132.67)  498.31                80
 02/26/2019   21:56:02   (   0.01,-128.31) (   0.04,-128.14)   19.96                80
 03/01/2019   10:01:44   (   0.00,-128.41) (   0.12,-128.87)   52.44                80
 03/02/2019   09:40:19   (   0.00,-128.43) (  -0.93,-124.35)  465.44                80
 03/03/2019   22:04:54   (  -0.00,-128.37) (  -0.27,-129.64)  144.48                80
 03/04/2019   21:43:29   (  -0.00,-128.38) (   0.73,-125.11)  373.14                80