Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 5 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)
 05/06/2021   21:55:18   (  -0.05,-127.85) (  -0.08,-127.98)   14.77                80
 05/09/2021   10:01:03   (   0.05,-127.99) (   0.20,-128.73)   83.86                80
 05/10/2021   09:39:40   (   0.05,-128.02) (  -0.83,-124.21)  435.52                80
 05/11/2021   22:01:37   (  -0.05,-128.02) (  -0.38,-129.51)  169.45                80
 05/12/2021   21:45:34   (  -0.04,-128.06) (   0.66,-124.99)  350.24                80
 05/14/2021   10:07:23   (   0.05,-128.16) (   0.49,-130.27)  239.37                80
 05/15/2021   09:45:59   (   0.04,-128.18) (  -0.48,-125.73)  279.27                80
 05/16/2021   22:07:57   (  -0.05,-128.16) (  -0.66,-131.05)  327.92                80
 05/17/2021   21:51:52   (  -0.04,-128.19) (   0.32,-126.51)  191.10                80