Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 1 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/28/2023   10:06:54   (   0.03,-128.28) (   0.50,-130.32)  233.67                80
 01/29/2023   09:50:50   (   0.03,-128.28) (  -0.50,-125.79)  283.75                80
 01/30/2023   22:12:47   (  -0.04,-128.25) (  -0.66,-131.09)  323.56                80
 01/31/2023   21:51:22   (  -0.04,-128.25) (   0.34,-126.56)  193.24                80
 02/02/2023   10:13:11   (   0.05,-128.29) (   0.83,-131.83)  402.67                80
 02/03/2023   09:57:06   (   0.05,-128.29) (  -0.17,-127.29)  114.15                80
 02/04/2023   22:19:03   (  -0.05,-128.26) (  -1.03,-132.59)  493.40                80
 02/05/2023   21:57:38   (  -0.05,-128.26) (  -0.02,-128.05)   23.01                80
 02/08/2023   10:00:42   (   0.05,-128.29) (   0.18,-128.79)   57.55                80
 02/09/2023   09:44:37   (   0.05,-128.29) (  -0.84,-124.26)  458.91                80
 02/10/2023   22:06:34   (  -0.05,-128.25) (  -0.35,-129.55)  149.01                80