Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 3 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/19/2023   22:10:31   (  -0.15,-127.79) (  -0.85,-131.01)  366.36                80
 03/20/2023   21:54:28   (  -0.15,-127.83) (   0.15,-126.48)  154.18                80
 03/22/2023   10:16:18   (   0.15,-127.86) (   0.99,-131.76)  443.95                80
 03/23/2023   09:54:55   (   0.15,-127.89) (  -0.01,-127.23)   76.41                80
 03/25/2023   21:58:10   (  -0.15,-128.02) (  -0.15,-128.00)    2.11                80
 03/28/2023   10:03:55   (   0.15,-128.07) (   0.33,-128.74)   77.16                80
 03/29/2023   09:42:32   (   0.16,-128.10) (  -0.69,-124.21)  442.61                80
 03/30/2023   22:04:30   (  -0.16,-128.18) (  -0.47,-129.52)  153.12                80
 03/31/2023   21:48:27   (  -0.16,-128.21) (   0.55,-125.00)  366.58                80