Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 11 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/27/2020   21:58:20   (   0.04,-127.84) (  -0.01,-128.04)   22.90                80
 11/28/2020   21:36:55   (   0.05,-127.86) (   1.00,-123.50)  496.34                80
 11/30/2020   10:01:21   (  -0.02,-127.91) (   0.19,-128.77)   97.72                80
 12/01/2020   09:39:57   (  -0.04,-127.94) (  -0.88,-124.25)  421.35                80
 12/02/2020   22:04:31   (   0.00,-127.97) (  -0.37,-129.53)  178.71                80
 12/03/2020   21:43:06   (   0.02,-127.99) (   0.70,-125.01)  339.60                80
 12/05/2020   10:07:32   (   0.01,-128.02) (   0.54,-130.27)  256.15                80
 12/06/2020   09:46:07   (  -0.01,-128.04) (  -0.53,-125.74)  262.12                80
 12/07/2020   22:10:41   (  -0.03,-128.07) (  -0.71,-131.03)  338.42                80
 12/08/2020   21:49:17   (  -0.00,-128.08) (   0.36,-126.51)  179.37                80
 12/10/2020   10:13:42   (   0.04,-128.11) (   0.88,-131.76)  417.41                80