Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 12 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/28/2022   22:29:00   (   0.01,-137.34) (   0.30,-136.06)  145.97                80
 12/30/2022   10:53:29   (  -0.01,-137.34) (   0.88,-141.33)  454.88                80
 12/31/2022   10:32:06   (  -0.02,-137.34) (  -0.14,-136.80)   61.10                80
 01/02/2023   22:35:20   (  -0.02,-137.33) (  -0.08,-137.57)   27.74                80
 01/03/2023   22:19:16   (  -0.02,-137.32) (   0.95,-133.04)  487.71                80
 01/05/2023   10:41:06   (   0.02,-137.31) (   0.23,-138.31)  114.40                80
 01/06/2023   10:19:42   (   0.02,-137.30) (  -0.79,-133.79)  400.67                80
 01/07/2023   22:41:39   (  -0.02,-137.28) (  -0.43,-139.08)  206.03                80
 01/08/2023   22:25:36   (  -0.01,-137.27) (   0.60,-134.56)  308.78                80
 01/10/2023   10:47:25   (   0.01,-137.24) (   0.57,-139.83)  294.18                80