Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 4 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/19/2023   22:32:42   (  -0.15,-135.87) (  -0.16,-135.93)    6.21                80
 04/22/2023   10:33:07   (   0.15,-137.13) (   0.06,-136.72)   46.69                80
 04/23/2023   22:57:44   (  -0.13,-137.84) (  -1.10,-142.06)  481.25                80
 04/24/2023   22:36:21   (  -0.15,-138.32) (   0.05,-137.56)   87.81                80
 04/26/2023   11:00:49   (   0.13,-139.09) (   0.98,-142.85)  429.54                80
 04/27/2023   10:39:25   (   0.15,-139.56) (  -0.11,-138.34)  139.15                80
 04/28/2023   23:04:02   (  -0.13,-140.26) (  -0.91,-143.68)  389.69                80
 04/29/2023   22:42:38   (  -0.14,-140.74) (   0.19,-139.16)  178.95                80
 05/01/2023   11:07:07   (   0.12,-141.50) (   0.77,-144.48)  339.05                80