Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2017 11 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/04/2017   10:37:29   (   0.10,-134.69) (   0.89,-138.26)  406.30                80
 11/05/2017   10:21:24   (   0.11,-134.64) (  -0.08,-133.72)  105.16                80
 11/07/2017   22:21:55   (  -0.10,-134.44) (  -0.14,-134.48)    6.17                80
 11/10/2017   10:24:58   (   0.09,-134.39) (   0.29,-135.23)   95.70                80
 11/11/2017   10:08:53   (   0.10,-134.34) (  -0.75,-130.70)  414.88                80
 11/12/2017   22:28:08   (  -0.07,-134.17) (  -0.50,-136.00)  208.54                80
 11/13/2017   22:12:04   (  -0.08,-134.12) (   0.54,-131.47)  302.39                80
 11/15/2017   10:31:11   (   0.06,-134.12) (   0.64,-136.74)  298.51                80
 11/16/2017   10:15:06   (   0.07,-134.06) (  -0.33,-132.20)  211.81                80