Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 6 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/29/2023   12:39:02   (  -0.18,-166.75) (   0.19,-168.37)  184.70                80
 06/30/2023   12:22:59   (  -0.16,-167.12) (  -0.92,-163.87)  371.99                80
 07/02/2023   00:42:19   (   0.20,-167.69) (  -0.13,-169.21)  172.80                80
 07/03/2023   00:26:15   (   0.18,-168.06) (   0.93,-164.69)  383.36                80
 07/04/2023   12:45:27   (  -0.22,-168.61) (   0.08,-170.01)  158.62                80
 07/05/2023   12:29:23   (  -0.20,-168.97) (  -0.98,-165.49)  397.07                80
 07/07/2023   00:48:42   (   0.24,-169.53) (  -0.06,-170.83)  148.92                80
 07/08/2023   00:32:39   (   0.21,-169.89) (   1.01,-166.32)  406.84                80
 07/09/2023   12:51:50   (  -0.25,-170.44) (  -0.00,-171.63)  135.38                80
 07/10/2023   12:35:47   (  -0.23,-170.80) (  -1.07,-167.11)  419.99                80
 07/12/2023   00:55:06   (   0.27,-171.34) (   0.04,-172.46)  126.94                80