Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 1 27.  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) (   0.49,-130.32)  233.70                80
 01/29/2023   09:50:50   (   0.03,-128.28) (  -0.51,-125.79)  283.79                80
 01/30/2023   22:12:47   (  -0.04,-128.26) (  -0.66,-131.10)  323.38                80
 01/31/2023   21:51:23   (  -0.04,-128.26) (   0.35,-126.56)  193.49                80
 02/02/2023   10:13:11   (   0.04,-128.30) (   0.82,-131.83)  402.37                80
 02/03/2023   09:57:06   (   0.04,-128.30) (  -0.18,-127.29)  114.53                80
 02/04/2023   22:19:03   (  -0.05,-128.27) (  -1.02,-132.59)  492.86                80
 02/05/2023   21:57:38   (  -0.05,-128.27) (  -0.01,-128.06)   23.57                80
 02/08/2023   10:00:42   (   0.05,-128.29) (   0.16,-128.79)   56.80                80
 02/09/2023   09:44:38   (   0.05,-128.29) (  -0.85,-124.26)  459.73                80