Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 6 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/19/2023   12:26:16   (  -0.12,-162.89) (   0.39,-165.12)  254.93                80
 06/20/2023   12:10:11   (  -0.10,-163.28) (  -0.70,-160.61)  304.48                80
 06/22/2023   00:29:29   (   0.14,-163.87) (  -0.31,-165.95)  235.81                80
 06/23/2023   00:13:23   (   0.11,-164.26) (   0.72,-161.42)  323.51                80
 06/24/2023   12:32:33   (  -0.15,-164.85) (   0.25,-166.73)  213.53                80
 06/25/2023   12:16:27   (  -0.13,-165.23) (  -0.79,-162.20)  345.43                80
 06/27/2023   00:35:44   (   0.16,-165.82) (  -0.22,-167.54)  195.85                80
 06/28/2023   00:19:39   (   0.14,-166.20) (   0.83,-163.01)  362.72                80
 06/29/2023   12:38:48   (  -0.18,-166.78) (   0.15,-168.32)  175.69                80
 06/30/2023   12:22:43   (  -0.16,-167.15) (  -0.90,-163.80)  382.07                80
 07/02/2023   00:42:00   (   0.20,-167.72) (  -0.09,-169.14)  161.34                80