Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 1 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/27/2023   21:25:48   (  -0.01,-118.96) (  -0.26,-120.09)  128.34                80
 01/28/2023   21:09:40   (  -0.01,-117.81) (   0.51,-115.50)  263.01                80
 01/31/2023   09:09:53   (   0.01,-114.88) (   0.31,-116.09)  138.35                80
 02/01/2023   08:53:44   (   0.01,-113.72) (  -0.46,-111.50)  252.70                80
 02/03/2023   20:54:06   (  -0.02,-110.80) (  -0.33,-112.13)  151.65                80
 02/04/2023   20:37:58   (  -0.02,-109.65) (   0.44,-107.54)  239.39                80
 02/07/2023   08:38:11   (   0.02,-106.72) (   0.36,-108.13)  161.98                80
 02/08/2023   08:22:02   (   0.02,-105.56) (  -0.42,-103.55)  229.15                80