Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 3 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/23/2021   09:39:50   (  -0.09,-128.38) (  -0.98,-124.29)  465.70                80
 03/24/2021   22:01:47   (   0.08,-128.39) (  -0.18,-129.60)  137.14                80
 03/25/2021   21:45:41   (   0.08,-128.39) (   0.81,-125.06)  378.72                80
 03/27/2021   10:07:28   (  -0.07,-128.36) (   0.37,-130.33)  224.13                80
 03/28/2021   09:46:03   (  -0.08,-128.35) (  -0.62,-125.79)  290.76                80
 03/29/2021   22:07:59   (   0.06,-128.34) (  -0.54,-131.10)  314.05                80
 03/30/2021   21:51:54   (   0.07,-128.33) (   0.45,-126.56)  201.18                80
 04/01/2021   10:13:41   (  -0.06,-128.30) (   0.72,-131.83)  401.67                80
 04/02/2021   09:52:16   (  -0.07,-128.28) (  -0.26,-127.29)  112.41                80
 04/03/2021   22:14:11   (   0.05,-128.25) (  -0.95,-132.58)  494.77                80
 04/04/2021   21:58:06   (   0.05,-128.23) (   0.10,-128.06)   19.76                80