Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 9 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)
 09/10/2023   05:36:23   (  -0.38, 119.00) (  -0.64, 117.84)  131.78                80
 09/11/2023   05:15:02   (  -0.38, 117.96) (   0.61, 122.32)  497.51                80
 09/12/2023   17:36:53   (   0.37, 116.42) (   0.27, 116.99)   64.26                80
 09/14/2023   06:01:35   (  -0.36, 114.77) (  -1.09, 111.60)  361.40                80
 09/15/2023   05:40:13   (  -0.37, 113.72) (   0.17, 116.08)  269.23                80
 09/16/2023   18:04:45   (   0.36, 112.16) (   0.65, 110.74)  161.29                80
 09/17/2023   17:43:23   (   0.37, 111.11) (  -0.54, 115.23)  468.95                80
 09/19/2023   06:05:24   (  -0.36, 109.45) (  -0.26, 109.84)   44.71                80
 09/20/2023   18:29:57   (   0.34, 107.87) (   1.07, 104.49)  384.13                80
 09/21/2023   18:08:34   (   0.35, 106.82) (  -0.13, 108.98)  246.45                80