Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 2 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)
 02/07/2021   10:07:26   (   0.42,-127.43) (   1.06,-130.21)  316.78                80
 02/08/2021   09:46:02   (   0.40,-127.47) (   0.03,-125.68)  203.86                80
 02/09/2021   22:10:38   (  -0.44,-127.57) (  -1.21,-130.99)  389.28                80
 02/10/2021   21:49:13   (  -0.42,-127.61) (  -0.18,-126.46)  131.33                80
 02/12/2021   10:13:41   (   0.45,-127.64) (   1.39,-131.72)  465.18                80
 02/13/2021   09:52:17   (   0.44,-127.69) (   0.31,-127.21)   55.39                80
 02/15/2021   21:58:08   (  -0.45,-127.82) (  -0.51,-127.97)   17.73                80
 02/18/2021   10:01:12   (   0.46,-127.89) (   0.63,-128.72)   94.29                80
 02/19/2021   09:39:47   (   0.45,-127.92) (  -0.40,-124.19)  425.76                80
 02/20/2021   22:04:23   (  -0.48,-128.01) (  -0.83,-129.49)  168.91                80