Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 3 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/22/2023   10:16:18   (   0.15,-127.86) (   1.01,-131.75)  443.92                80
 03/23/2023   09:54:54   (   0.15,-127.89) (  -0.00,-127.22)   76.39                80
 03/25/2023   21:58:09   (  -0.15,-128.02) (  -0.17,-128.00)    2.90                80
 03/28/2023   10:03:56   (   0.15,-128.07) (   0.28,-128.75)   77.34                80
 03/29/2023   09:42:33   (   0.16,-128.10) (  -0.73,-124.22)  442.39                80
 03/30/2023   22:04:31   (  -0.16,-128.18) (  -0.43,-129.53)  153.54                80
 03/31/2023   21:48:26   (  -0.16,-128.21) (   0.53,-124.99)  366.16                80
 04/02/2023   10:07:36   (   0.16,-128.22) (   0.65,-130.26)  233.26                80
 04/03/2023   09:48:52   (   0.17,-128.25) (  -0.37,-125.73)  286.21                80