Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 12 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)
 12/11/2022   10:06:05   (   0.02,-127.64) (   0.60,-130.24)  295.84                80
 12/12/2022   09:50:02   (   0.03,-127.60) (  -0.39,-125.71)  215.89                80
 12/13/2022   22:09:20   (  -0.01,-127.47) (  -0.81,-131.01)  403.47                80
 12/14/2022   21:53:17   (  -0.02,-127.43) (   0.19,-126.48)  108.25                80
 12/16/2022   10:12:27   (   0.00,-127.43) (   0.96,-131.76)  492.77                80
 12/17/2022   09:56:24   (   0.01,-127.39) (  -0.04,-127.23)   18.67                80
 12/19/2022   21:56:58   (  -0.00,-127.21) (  -0.15,-128.01)   90.40                80
 12/20/2022   21:40:54   (  -0.01,-127.16) (   0.79,-123.46)  420.58                80
 12/22/2022   10:00:04   (   0.00,-127.15) (   0.35,-128.74)  181.90                80
 12/23/2022   09:44:01   (   0.01,-127.09) (  -0.65,-124.21)  328.34                80