Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 7 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/20/2023   01:46:07   (   0.31, 172.21) (   0.87, 174.64)  277.26                80
 07/21/2023   14:10:40   (  -0.34, 170.69) (  -0.01, 169.30)  158.96                80
 07/22/2023   13:49:19   (  -0.31, 169.68) (  -1.21, 173.79)  466.80                80
 07/24/2023   02:11:22   (   0.35, 168.12) (   0.42, 168.39)   30.92                80
 07/25/2023   14:35:55   (  -0.38, 166.59) (   0.43, 163.04)  405.20                80
 07/26/2023   14:14:34   (  -0.35, 165.59) (  -0.77, 167.53)  220.17                80
 07/28/2023   02:39:17   (   0.39, 164.04) (  -0.02, 162.13)  216.66                80
 07/29/2023   02:17:56   (   0.37, 163.04) (   1.18, 166.62)  408.57                80
 07/30/2023   14:42:29   (  -0.40, 161.52) (  -0.34, 161.27)   28.45                80
 08/01/2023   03:04:31   (   0.43, 159.97) (  -0.49, 155.88)  466.15                80