Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 3 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/20/2023   21:54:28   (  -0.15,-127.83) (   0.15,-126.48)  154.17                80
 03/22/2023   10:16:18   (   0.15,-127.86) (   1.00,-131.76)  443.92                80
 03/23/2023   09:54:55   (   0.15,-127.89) (  -0.01,-127.23)   76.42                80
 03/25/2023   21:58:09   (  -0.15,-128.02) (  -0.16,-128.00)    2.28                80
 03/28/2023   10:03:55   (   0.15,-128.07) (   0.33,-128.74)   77.15                80
 03/29/2023   09:42:32   (   0.16,-128.10) (  -0.69,-124.21)  442.63                80
 03/30/2023   22:04:30   (  -0.16,-128.18) (  -0.48,-129.52)  153.14                80
 03/31/2023   21:48:27   (  -0.16,-128.21) (   0.55,-124.99)  366.57                80
 04/02/2023   10:07:36   (   0.16,-128.22) (   0.63,-130.26)  232.84                80