Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 1 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/14/2023   22:12:38   (  -0.00,-128.05) (  -0.70,-131.10)  347.32                80
 01/15/2023   21:51:14   (  -0.01,-128.07) (   0.34,-126.57)  170.83                80
 01/17/2023   10:13:04   (   0.01,-128.15) (   0.81,-131.85)  421.44                80
 01/18/2023   09:56:59   (   0.01,-128.16) (  -0.17,-127.31)   96.39                80
 01/20/2023   21:57:33   (  -0.01,-128.13) (   0.02,-128.09)    5.80                80
 01/23/2023   10:00:38   (   0.00,-128.19) (   0.13,-128.83)   72.03                80
 01/24/2023   09:44:33   (  -0.00,-128.20) (  -0.87,-124.29)  445.16                80
 01/25/2023   22:06:31   (   0.00,-128.16) (  -0.31,-129.60)  163.40                80
 01/26/2023   21:45:06   (   0.00,-128.17) (   0.69,-125.06)  353.55                80