Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 2 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/05/2021   21:42:59   (  -0.38,-127.39) (   0.15,-124.95)  278.56                80
 02/07/2021   10:07:26   (   0.42,-127.26) (   1.05,-130.21)  335.73                80
 02/08/2021   09:46:01   (   0.41,-127.21) (   0.09,-125.67)  175.40                80
 02/09/2021   22:10:37   (  -0.44,-127.21) (  -1.26,-130.97)  428.82                80
 02/10/2021   21:49:12   (  -0.42,-127.16) (  -0.24,-126.44)   82.41                80
 02/13/2021   09:54:54   (   0.44,-126.98) (   0.48,-127.17)   21.11                80
 02/14/2021   09:33:30   (   0.43,-126.93) (  -0.55,-122.64)  489.86                80
 02/15/2021   21:58:05   (  -0.45,-126.93) (  -0.68,-127.93)  114.70                80
 02/16/2021   21:36:41   (  -0.44,-126.88) (   0.35,-123.40)  396.35                80
 02/18/2021   10:01:07   (   0.47,-126.74) (   0.92,-128.65)  218.73                80