Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 4 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)
 04/22/2023   10:33:07   (   0.15,-137.13) (   0.05,-136.72)   46.83                80
 04/23/2023   22:57:45   (  -0.13,-137.84) (  -1.09,-142.06)  481.14                80
 04/24/2023   22:36:20   (  -0.15,-138.32) (   0.00,-137.54)   87.89                80
 04/26/2023   11:00:49   (   0.13,-139.09) (   0.97,-142.86)  429.49                80
 04/27/2023   10:39:25   (   0.15,-139.56) (  -0.13,-138.34)  139.19                80
 04/28/2023   23:04:02   (  -0.13,-140.26) (  -0.90,-143.68)  389.67                80
 04/29/2023   22:42:38   (  -0.15,-140.74) (   0.20,-139.16)  178.95                80
 05/01/2023   11:07:06   (   0.13,-141.50) (   0.81,-144.47)  339.07                80
 05/02/2023   10:45:42   (   0.14,-141.97) (  -0.29,-139.95)  229.19                80
 05/03/2023   23:10:19   (  -0.12,-142.66) (  -0.71,-145.29)  300.70                80