Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 7 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/10/2023   01:35:37   (   0.28,-177.56) (  -0.68, 178.20)  483.51                80
 07/11/2023   01:14:16   (   0.25,-178.58) (   0.50,-177.31)  143.70                80
 07/12/2023   13:38:51   (  -0.29, 179.87) (   0.26, 177.32)  290.10                80
 07/13/2023   13:17:29   (  -0.26, 178.86) (  -0.93,-178.19)  336.43                80
 07/15/2023   01:42:13   (   0.30, 177.29) (   0.13, 176.41)   99.58                80
 07/17/2023   13:42:46   (  -0.30, 174.74) (  -0.51, 175.54)   92.49                80
 07/19/2023   02:07:28   (   0.34, 173.17) (  -0.34, 170.16)  344.01                80
 07/20/2023   01:46:06   (   0.31, 172.16) (   0.85, 174.65)  282.50                80
 07/21/2023   14:10:41   (  -0.35, 170.62) (  -0.05, 169.29)  151.50                80
 07/22/2023   13:49:19   (  -0.32, 169.61) (  -1.24, 173.78)  474.73                80