Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 9 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/11/2022   10:15:05   (   0.35,-127.72) (   1.29,-131.86)  472.43                80
 09/12/2022   09:53:41   (   0.35,-127.69) (   0.30,-127.33)   40.98                80
 09/14/2022   21:56:53   (  -0.35,-127.58) (  -0.46,-128.11)   59.39                80
 09/15/2022   21:40:49   (  -0.35,-127.56) (   0.54,-123.57)  454.20                80
 09/17/2022   10:02:37   (   0.34,-127.56) (   0.64,-128.84)  146.71                80
 09/18/2022   09:41:13   (   0.34,-127.52) (  -0.36,-124.31)  365.85                80
 09/19/2022   22:03:10   (  -0.32,-127.42) (  -0.80,-129.62)  250.23                80
 09/20/2022   21:47:06   (  -0.33,-127.39) (   0.20,-125.09)  262.74                80
 09/22/2022   10:08:54   (   0.31,-127.40) (   0.97,-130.36)  337.81                80
 09/23/2022   09:47:29   (   0.32,-127.36) (  -0.03,-125.83)  174.44                80
 09/24/2022   22:09:26   (  -0.30,-127.24) (  -1.18,-131.12)  443.32                80