Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2021 2 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/25/2021   22:08:08   (   0.16,-128.18) (  -0.52,-131.14)  337.44                80
 02/26/2021   21:52:03   (   0.17,-128.20) (   0.51,-126.61)  181.52                80
 02/28/2021   10:13:51   (  -0.16,-128.20) (   0.69,-131.87)  418.70                80
 03/01/2021   09:52:26   (  -0.16,-128.22) (  -0.34,-127.34)   99.40                80
 03/02/2021   22:14:22   (   0.15,-128.27) (  -0.82,-132.65)  498.88                80
 03/03/2021   21:58:18   (   0.16,-128.29) (   0.21,-128.13)   19.52                80
 03/06/2021   10:01:21   (  -0.15,-128.30) (  -0.05,-128.86)   63.62                80
 03/07/2021   09:39:55   (  -0.15,-128.31) (  -1.02,-124.32)  453.61                80
 03/08/2021   22:01:52   (   0.14,-128.34) (  -0.13,-129.63)  146.28                80
 03/09/2021   21:45:46   (   0.14,-128.35) (   0.84,-125.09)  371.38                80