Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 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)
 11/28/2019   09:59:04   (   0.04,-128.43) (   0.16,-128.84)   47.88                80
 11/29/2019   09:43:00   (   0.05,-128.41) (  -0.89,-124.32)  467.28                80
 11/30/2019   22:02:15   (  -0.03,-128.35) (  -0.32,-129.61)  144.32                80
 12/01/2019   21:46:10   (  -0.04,-128.33) (   0.68,-125.08)  370.60                80
 12/03/2019   10:05:17   (   0.02,-128.34) (   0.47,-130.35)  229.37                80
 12/04/2019   09:49:11   (   0.02,-128.32) (  -0.53,-125.82)  285.40                80
 12/05/2019   22:08:27   (  -0.00,-128.26) (  -0.67,-131.12)  326.60                80
 12/06/2019   21:52:22   (  -0.01,-128.24) (   0.38,-126.59)  188.06                80
 12/08/2019   10:11:29   (  -0.01,-128.24) (   0.82,-131.85)  412.45                80
 12/09/2019   09:55:23   (   0.01,-128.22) (  -0.18,-127.32)  101.85                80