Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 7 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/12/2023   13:38:51   (  -0.29, 179.88) (   0.28, 177.32)  291.02                80
 07/13/2023   13:17:29   (  -0.26, 178.87) (  -0.91,-178.19)  335.33                80
 07/15/2023   01:42:12   (   0.30, 177.30) (   0.10, 176.42)  100.36                80
 07/17/2023   13:42:45   (  -0.30, 174.75) (  -0.48, 175.55)   90.62                80
 07/19/2023   02:07:29   (   0.34, 173.19) (  -0.32, 170.15)  345.57                80
 07/20/2023   01:46:07   (   0.31, 172.18) (   0.87, 174.64)  280.75                80
 07/21/2023   14:10:41   (  -0.35, 170.64) (  -0.06, 169.28)  154.10                80
 07/22/2023   13:49:20   (  -0.32, 169.63) (  -1.25, 173.77)  471.96                80
 07/24/2023   02:11:22   (   0.35, 168.07) (   0.40, 168.39)   35.70                80