Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 1 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/25/2023   22:06:30   (  -0.02,-128.21) (  -0.34,-129.59)  156.85                80
 01/26/2023   21:45:06   (  -0.02,-128.22) (   0.71,-125.06)  360.66                80
 01/28/2023   10:06:55   (   0.02,-128.28) (   0.47,-130.33)  233.71                80
 01/29/2023   09:50:50   (   0.03,-128.29) (  -0.54,-125.80)  283.88                80
 01/30/2023   22:12:46   (  -0.03,-128.26) (  -0.68,-131.09)  323.05                80
 01/31/2023   21:51:22   (  -0.03,-128.26) (   0.33,-126.56)  193.93                80
 02/02/2023   10:13:10   (   0.03,-128.30) (   0.84,-131.82)  401.97                80
 02/03/2023   09:57:06   (   0.03,-128.31) (  -0.17,-127.29)  115.06                80
 02/04/2023   22:19:02   (  -0.03,-128.28) (  -1.03,-132.59)  492.09                80
 02/05/2023   21:57:38   (  -0.03,-128.28) (  -0.01,-128.05)   24.62                80