Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2022   10:19:23   (   0.02,-137.34) (  -0.76,-133.74)  409.75                80
 12/22/2022   22:41:22   (  -0.02,-137.34) (  -0.43,-139.05)  195.55                80
 12/23/2022   22:22:39   (  -0.02,-137.34) (   0.64,-134.54)  320.00                80
 12/25/2022   10:47:08   (   0.01,-137.33) (   0.55,-139.80)  282.03                80
 12/26/2022   10:25:45   (   0.00,-137.32) (  -0.46,-135.28)  233.04                80
 12/27/2022   22:50:23   (   0.00,-137.31) (  -0.72,-140.58)  373.24                80
 12/28/2022   22:29:00   (   0.01,-137.30) (   0.29,-136.06)  141.88                80
 12/30/2022   10:53:29   (  -0.01,-137.29) (   0.89,-141.33)  460.17                80
 12/31/2022   10:32:06   (  -0.01,-137.28) (  -0.12,-136.80)   54.83                80
 01/02/2023   22:37:59   (   0.00,-137.25) (  -0.09,-137.57)   37.11                80
 01/03/2023   22:16:36   (   0.00,-137.23) (   0.93,-133.04)  477.49                80