Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 9 10.  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) (   1.28,-131.87)  472.41                80
 09/12/2022   09:53:41   (   0.35,-127.69) (   0.29,-127.33)   40.95                80
 09/14/2022   21:56:54   (  -0.35,-127.58) (  -0.45,-128.11)   59.45                80
 09/15/2022   21:40:49   (  -0.35,-127.56) (   0.55,-123.58)  454.16                80
 09/17/2022   10:02:37   (   0.34,-127.56) (   0.63,-128.85)  146.60                80
 09/18/2022   09:41:13   (   0.34,-127.53) (  -0.37,-124.31)  365.96                80
 09/19/2022   22:03:10   (  -0.32,-127.42) (  -0.79,-129.62)  250.21                80
 09/20/2022   21:47:06   (  -0.33,-127.39) (   0.21,-125.09)  262.79                80
 09/22/2022   10:08:54   (   0.31,-127.40) (   0.97,-130.36)  337.64                80
 09/23/2022   09:47:30   (   0.32,-127.36) (  -0.04,-125.83)  174.62                80