Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 9 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/11/2023   20:28:16   (   0.02,-104.69) (  -0.22,-105.86)  133.36                80
 09/12/2023   20:12:11   (   0.02,-104.69) (   0.79,-101.33)  383.40                80
 09/14/2023   08:33:57   (  -0.02,-104.71) (   0.38,-106.60)  214.77                80
 09/15/2023   08:12:31   (  -0.02,-104.71) (  -0.64,-102.06)  301.92                80
 09/16/2023   20:34:26   (   0.02,-104.69) (  -0.58,-107.36)  304.21                80
 09/17/2023   20:18:20   (   0.02,-104.69) (   0.44,-102.83)  212.72                80
 09/19/2023   08:40:07   (  -0.03,-104.72) (   0.73,-108.10)  385.11                80
 09/20/2023   08:18:41   (  -0.03,-104.71) (  -0.30,-103.57)  131.24                80
 09/21/2023   20:40:35   (   0.03,-104.69) (  -0.91,-108.86)  476.04                80
 09/22/2023   20:24:30   (   0.04,-104.68) (   0.12,-104.33)   40.27                80