Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 12 19.  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   21:56:57   (  -0.01,-127.24) (  -0.20,-127.99)   87.02                80
 12/20/2022   21:40:54   (  -0.01,-127.19) (   0.80,-123.46)  424.37                80
 12/22/2022   10:00:04   (   0.01,-127.17) (   0.34,-128.74)  178.49                80
 12/23/2022   09:44:00   (   0.01,-127.12) (  -0.61,-124.20)  332.21                80
 12/24/2022   22:03:18   (  -0.00,-126.98) (  -0.57,-129.51)  288.13                80
 12/25/2022   21:47:15   (  -0.01,-126.93) (   0.44,-124.98)  222.28                80
 12/27/2022   10:06:24   (  -0.00,-126.91) (   0.75,-130.25)  381.31                80
 12/28/2022   09:50:20   (   0.00,-126.85) (  -0.26,-125.72)  129.06                80
 12/29/2022   22:09:38   (   0.01,-126.71) (  -0.98,-131.02)  491.35                80
 12/30/2022   21:53:34   (   0.00,-126.66) (   0.04,-126.49)   19.04                80