Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 7 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/28/2023   02:39:16   (   0.39, 164.09) (  -0.07, 162.15)  222.06                80
 07/29/2023   02:17:55   (   0.36, 163.09) (   1.13, 166.63)  402.71                80
 07/30/2023   14:42:29   (  -0.40, 161.58) (  -0.35, 161.27)   35.01                80
 08/01/2023   03:04:31   (   0.43, 160.04) (  -0.49, 155.88)  473.69                80
 08/02/2023   02:43:10   (   0.41, 159.05) (   0.71, 160.37)  151.01                80
 08/03/2023   15:07:43   (  -0.44, 157.53) (   0.12, 155.02)  285.74                80
 08/04/2023   14:46:22   (  -0.41, 156.54) (  -1.09, 159.51)  338.95                80
 08/06/2023   03:11:04   (   0.44, 154.99) (   0.26, 154.12)   98.68                80
 08/08/2023   15:11:36   (  -0.44, 152.47) (  -0.64, 153.25)   90.58                80