Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 1 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/21/2020   09:48:39   (  -0.04,-128.42) (  -0.66,-125.74)  306.03                80
 01/22/2020   22:10:33   (   0.04,-128.42) (  -0.56,-131.03)  298.77                80
 01/23/2020   21:49:08   (   0.03,-128.41) (   0.45,-126.50)  217.35                80
 01/25/2020   10:10:54   (  -0.04,-128.40) (   0.74,-131.76)  384.14                80
 01/26/2020   09:54:48   (  -0.04,-128.39) (  -0.27,-127.23)  131.95                80
 01/27/2020   22:16:44   (   0.04,-128.38) (  -0.89,-132.53)  473.02                80
 01/28/2020   21:55:18   (   0.04,-128.37) (   0.12,-128.00)   42.76                80
 01/31/2020   09:58:19   (  -0.04,-128.34) (   0.06,-128.72)   43.63                80
 02/01/2020   09:42:14   (  -0.04,-128.33) (  -0.96,-124.19)  471.97                80
 02/02/2020   22:04:08   (   0.03,-128.32) (  -0.25,-129.48)  133.66                80
 02/03/2020   21:42:42   (   0.03,-128.30) (   0.76,-124.95)  381.43                80