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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/15/2022   21:40:49   (  -0.35,-127.56) (   0.56,-123.58)  454.38                80
 09/17/2022   10:02:38   (   0.34,-127.55) (   0.61,-128.85)  147.81                80
 09/18/2022   09:41:13   (   0.34,-127.51) (  -0.39,-124.32)  364.59                80
 09/19/2022   22:03:09   (  -0.33,-127.42) (  -0.83,-129.61)  250.68                80
 09/20/2022   21:47:05   (  -0.33,-127.38) (   0.18,-125.08)  262.14                80
 09/22/2022   10:08:53   (   0.31,-127.37) (   0.99,-130.35)  339.61                80
 09/23/2022   09:47:29   (   0.32,-127.33) (  -0.02,-125.82)  172.49                80
 09/24/2022   22:09:25   (  -0.30,-127.22) (  -1.18,-131.12)  444.48                80
 09/25/2022   21:53:21   (  -0.30,-127.19) (  -0.17,-126.59)   68.13                80
 09/28/2022   09:56:24   (   0.30,-127.14) (   0.33,-127.33)   21.33                80