Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 2 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)
 02/02/2021   10:01:12   (   0.38,-127.47) (   0.65,-128.71)  141.41                80
 02/03/2021   09:39:48   (   0.36,-127.43) (  -0.37,-124.18)  370.30                80
 02/04/2021   22:04:23   (  -0.40,-127.43) (  -0.87,-129.48)  233.63                80
 02/05/2021   21:42:59   (  -0.38,-127.39) (   0.16,-124.95)  277.87                80
 02/07/2021   10:07:26   (   0.42,-127.26) (   1.05,-130.21)  335.63                80
 02/08/2021   09:46:01   (   0.40,-127.21) (   0.08,-125.67)  175.43                80
 02/09/2021   22:10:37   (  -0.44,-127.20) (  -1.26,-130.97)  429.76                80
 02/10/2021   21:49:11   (  -0.42,-127.15) (  -0.29,-126.43)   81.42                80
 02/13/2021   09:54:54   (   0.44,-126.98) (   0.47,-127.17)   21.38                80
 02/14/2021   09:33:30   (   0.43,-126.93) (  -0.55,-122.64)  489.55                80