Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 10 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/16/2019   10:05:33   (   0.22,-128.12) (   0.74,-130.30)  248.25                80
 10/17/2019   09:49:29   (   0.24,-128.15) (  -0.30,-125.77)  271.20                80
 10/18/2019   22:08:45   (  -0.21,-128.14) (  -0.86,-131.08)  335.65                80
 10/19/2019   21:52:40   (  -0.22,-128.16) (   0.12,-126.55)  183.43                80
 10/21/2019   10:11:48   (   0.19,-128.24) (   1.01,-131.83)  408.73                80
 10/22/2019   09:55:43   (   0.20,-128.26) (  -0.03,-127.30)  109.78                80
 10/23/2019   22:14:59   (  -0.18,-128.23) (  -1.18,-132.60)  498.66                80
 10/24/2019   21:58:54   (  -0.19,-128.25) (  -0.14,-128.08)   19.88                80
 10/27/2019   09:59:17   (   0.18,-128.35) (   0.29,-128.82)   54.24                80
 10/28/2019   09:43:12   (   0.19,-128.36) (  -0.70,-124.29)  463.92                80