Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 12 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2023   21:33:31   (  -0.02,  61.17) (   0.62,  58.42)  314.52                80
 12/11/2023   21:12:06   (  -0.00,  61.18) (  -0.39,  62.95)  201.61                80
 12/13/2023   09:34:01   (   0.02,  61.26) (  -0.79,  57.65)  411.72                80
 12/14/2023   09:17:56   (   0.01,  61.27) (   0.23,  62.19)  104.62                80
 12/15/2023   21:39:42   (  -0.03,  61.21) (   0.94,  56.92)  489.18                80
 12/16/2023   21:18:17   (  -0.02,  61.23) (  -0.08,  61.45)   26.14                80
 12/19/2023   09:21:26   (   0.03,  61.33) (  -0.13,  60.70)   73.27                80
 12/20/2023   09:05:20   (   0.02,  61.34) (   0.89,  65.23)  442.75                80
 12/21/2023   21:27:06   (  -0.04,  61.28) (   0.28,  59.96)  150.72                80
 12/22/2023   21:05:41   (  -0.02,  61.30) (  -0.74,  64.50)  364.39                80