Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 3 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/25/2023   21:58:09   (  -0.15,-128.02) (  -0.16,-128.00)    1.72                80
 03/28/2023   10:03:55   (   0.15,-128.06) (   0.32,-128.74)   77.56                80
 03/29/2023   09:42:32   (   0.16,-128.09) (  -0.71,-124.22)  442.06                80
 03/30/2023   22:04:30   (  -0.16,-128.17) (  -0.45,-129.53)  154.15                80
 03/31/2023   21:48:27   (  -0.17,-128.20) (   0.58,-125.00)  365.47                80
 04/02/2023   10:07:35   (   0.16,-128.21) (   0.64,-130.26)  233.77                80
 04/03/2023   09:48:51   (   0.17,-128.24) (  -0.39,-125.73)  285.64                80
 04/04/2023   22:10:49   (  -0.16,-128.31) (  -0.80,-131.03)  311.20                80
 04/05/2023   21:54:45   (  -0.17,-128.33) (   0.24,-126.51)  208.12                80
 04/07/2023   10:13:54   (   0.16,-128.34) (   0.90,-131.78)  391.64                80