Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 1 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/31/2022   09:52:59   (  -0.02,-128.29) (  -0.23,-127.27)  115.95                80
 02/01/2022   22:14:54   (   0.03,-128.29) (  -0.93,-132.57)  487.93                80
 02/02/2022   21:58:47   (   0.02,-128.27) (   0.07,-128.03)   27.99                80
 02/05/2022   10:01:46   (  -0.02,-128.23) (   0.11,-128.75)   59.58                80
 02/06/2022   09:40:19   (  -0.02,-128.21) (  -0.89,-124.21)  456.01                80
 02/07/2022   22:02:14   (   0.02,-128.21) (  -0.27,-129.51)  147.91                80
 02/08/2022   21:46:07   (   0.01,-128.19) (   0.73,-124.97)  367.64                80
 02/10/2022   10:07:52   (   0.01,-128.15) (   0.50,-130.22)  236.03                80
 02/11/2022   09:46:26   (   0.01,-128.13) (  -0.56,-125.69)  278.87                80
 02/12/2022   22:08:19   (  -0.00,-128.11) (  -0.65,-130.98)  326.60                80
 02/13/2022   21:52:13   (  -0.00,-128.09) (   0.36,-126.44)  188.04                80