Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 11 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/28/2020   21:36:55   (   0.05,-127.87) (   1.02,-123.51)  496.46                80
 11/30/2020   10:01:21   (  -0.02,-127.91) (   0.16,-128.77)   97.81                80
 12/01/2020   09:39:56   (  -0.04,-127.94) (  -0.84,-124.24)  421.23                80
 12/02/2020   22:04:31   (   0.00,-127.97) (  -0.34,-129.54)  178.61                80
 12/03/2020   21:43:06   (   0.02,-127.99) (   0.67,-125.01)  339.69                80
 12/05/2020   10:07:32   (   0.01,-128.02) (   0.52,-130.27)  256.24                80
 12/06/2020   09:46:08   (  -0.01,-128.04) (  -0.55,-125.75)  262.01                80
 12/07/2020   22:10:42   (  -0.03,-128.07) (  -0.69,-131.04)  338.37                80
 12/08/2020   21:49:16   (  -0.00,-128.09) (   0.32,-126.50)  179.44                80
 12/10/2020   10:13:43   (   0.04,-128.11) (   0.86,-131.77)  417.52                80
 12/11/2020   09:52:17   (   0.02,-128.12) (  -0.15,-127.24)  100.29                80