Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 5 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/30/2022   22:01:47   (  -0.03,-127.99) (  -0.34,-129.41)  161.77                80
 05/31/2022   21:45:40   (  -0.05,-128.02) (   0.63,-124.87)  358.73                80
 06/02/2022   10:04:47   (   0.02,-128.06) (   0.46,-130.14)  236.57                80
 06/03/2022   09:48:41   (   0.03,-128.09) (  -0.51,-125.60)  283.48                80
 06/04/2022   22:07:56   (  -0.01,-128.12) (  -0.63,-130.90)  317.17                80
 06/05/2022   21:51:51   (  -0.03,-128.15) (   0.40,-126.37)  202.96                80
 06/07/2022   10:10:57   (  -0.00,-128.19) (   0.75,-131.64)  392.53                80
 06/08/2022   09:54:51   (   0.01,-128.21) (  -0.23,-127.09)  127.17                80
 06/09/2022   22:14:06   (   0.02,-128.23) (  -0.91,-132.40)  474.61                80
 06/10/2022   21:57:59   (   0.00,-128.25) (   0.07,-127.86)   44.91                80