Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 12 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)
 12/11/2023   21:12:06   (  -0.00,  61.18) (  -0.38,  62.96)  201.80                80
 12/13/2023   09:34:01   (   0.02,  61.26) (  -0.80,  57.66)  411.36                80
 12/14/2023   09:17:56   (   0.01,  61.27) (   0.21,  62.19)  105.05                80
 12/15/2023   21:39:42   (  -0.03,  61.21) (   0.96,  56.92)  488.69                80
 12/16/2023   21:18:16   (  -0.02,  61.22) (  -0.06,  61.46)   26.72                80
 12/19/2023   09:21:26   (   0.03,  61.33) (  -0.09,  60.69)   72.43                80
 12/20/2023   09:05:20   (   0.02,  61.34) (   0.87,  65.23)  443.69                80
 12/21/2023   21:27:07   (  -0.04,  61.27) (   0.24,  59.95)  149.74                80
 12/22/2023   21:05:41   (  -0.02,  61.29) (  -0.73,  64.50)  365.45                80
 12/24/2023   09:27:36   (   0.04,  61.40) (  -0.43,  59.19)  250.89                80