Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 9 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)
 09/14/2022   21:56:53   (  -0.35,-127.59) (  -0.47,-128.10)   59.20                80
 09/15/2022   21:40:49   (  -0.35,-127.56) (   0.53,-123.57)  454.23                80
 09/17/2022   10:02:37   (   0.34,-127.55) (   0.64,-128.84)  147.80                80
 09/18/2022   09:41:13   (   0.34,-127.51) (  -0.36,-124.31)  364.60                80
 09/19/2022   22:03:10   (  -0.32,-127.41) (  -0.80,-129.62)  250.84                80
 09/20/2022   21:47:05   (  -0.33,-127.38) (   0.21,-125.09)  261.99                80
 09/22/2022   10:08:54   (   0.31,-127.38) (   0.96,-130.36)  339.62                80
 09/23/2022   09:47:29   (   0.32,-127.34) (  -0.05,-125.83)  172.50                80
 09/24/2022   22:09:26   (  -0.30,-127.22) (  -1.16,-131.13)  444.66                80
 09/25/2022   21:53:21   (  -0.30,-127.19) (  -0.15,-126.59)   67.98                80