Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 12 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/19/2022   21:56:58   (  -0.01,-127.23) (  -0.17,-128.00)   87.16                80
 12/20/2022   21:40:54   (  -0.01,-127.19) (   0.84,-123.47)  424.12                80
 12/22/2022   10:00:04   (   0.01,-127.17) (   0.36,-128.74)  178.70                80
 12/23/2022   09:44:00   (   0.01,-127.12) (  -0.65,-124.21)  331.90                80
 12/24/2022   22:03:18   (  -0.00,-126.98) (  -0.60,-129.50)  288.66                80
 12/25/2022   21:47:14   (  -0.01,-126.92) (   0.42,-124.98)  221.70                80
 12/27/2022   10:06:23   (  -0.00,-126.90) (   0.77,-130.25)  381.86                80
 12/28/2022   09:50:20   (   0.00,-126.85) (  -0.24,-125.72)  128.46                80
 12/29/2022   22:09:38   (   0.01,-126.70) (  -0.94,-131.03)  492.19                80
 12/30/2022   21:53:34   (   0.00,-126.65) (   0.02,-126.49)   18.28                80