Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 1 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/12/2023   10:06:44   (   0.01,-128.06) (   0.52,-130.33)  258.74                80
 01/13/2023   09:50:41   (   0.01,-128.08) (  -0.51,-125.80)  259.82                80
 01/14/2023   22:12:38   (  -0.00,-128.04) (  -0.69,-131.10)  348.61                80
 01/15/2023   21:51:14   (  -0.01,-128.06) (   0.34,-126.57)  169.39                80
 01/17/2023   10:13:04   (   0.01,-128.14) (   0.81,-131.85)  422.29                80
 01/18/2023   09:56:59   (   0.01,-128.15) (  -0.17,-127.31)   95.37                80
 01/20/2023   21:57:33   (  -0.01,-128.11) (   0.02,-128.09)    3.58                80
 01/23/2023   10:00:38   (   0.00,-128.18) (   0.14,-128.83)   73.96                80
 01/24/2023   09:44:34   (  -0.00,-128.18) (  -0.90,-124.30)  443.03                80
 01/25/2023   22:06:31   (   0.00,-128.13) (  -0.33,-129.59)  166.67                80