Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 1 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/05/2023   21:41:15   (  -0.01,-127.84) (   0.97,-123.53)  491.27                80
 01/07/2023   10:00:24   (   0.01,-127.95) (   0.20,-128.81)   97.91                80
 01/08/2023   09:44:21   (   0.01,-127.97) (  -0.82,-124.28)  420.91                80
 01/09/2023   22:06:18   (  -0.01,-127.93) (  -0.40,-129.58)  187.74                80
 01/10/2023   21:44:55   (  -0.01,-127.95) (   0.63,-125.05)  330.78                80
 01/12/2023   10:06:44   (   0.01,-128.05) (   0.53,-130.32)  259.15                80
 01/13/2023   09:50:40   (   0.01,-128.07) (  -0.49,-125.80)  259.36                80
 01/14/2023   22:12:38   (  -0.00,-128.04) (  -0.72,-131.10)  349.52                80
 01/15/2023   21:51:14   (  -0.01,-128.05) (   0.31,-126.57)  168.41                80
 01/17/2023   10:13:04   (   0.01,-128.13) (   0.85,-131.84)  423.01                80
 01/18/2023   09:57:00   (   0.01,-128.15) (  -0.19,-127.32)   94.57                80