Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 2 2.  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) (   0.68,-128.70)  141.51                80
 02/03/2021   09:39:47   (   0.36,-127.43) (  -0.34,-124.18)  370.29                80
 02/04/2021   22:04:24   (  -0.40,-127.43) (  -0.84,-129.48)  233.31                80
 02/05/2021   21:42:59   (  -0.38,-127.39) (   0.18,-124.95)  278.23                80
 02/07/2021   10:07:26   (   0.42,-127.26) (   1.09,-130.20)  335.47                80
 02/08/2021   09:46:01   (   0.40,-127.21) (   0.06,-125.67)  175.60                80
 02/09/2021   22:10:36   (  -0.44,-127.20) (  -1.29,-130.97)  429.22                80
 02/10/2021   21:49:12   (  -0.42,-127.16) (  -0.27,-126.44)   81.95                80
 02/13/2021   09:54:55   (   0.44,-126.98) (   0.45,-127.17)   21.21                80
 02/14/2021   09:33:29   (   0.43,-126.94) (  -0.51,-122.63)  489.99                80
 02/15/2021   21:58:06   (  -0.45,-126.92) (  -0.65,-127.94)  115.25                80