Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 2 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/13/2021   08:13:42   (  -0.01,-104.38) (  -0.56,-102.02)  268.84                80
 02/14/2021   20:35:37   (   0.01,-104.16) (  -0.67,-107.32)  359.08                80
 02/15/2021   20:14:12   (   0.02,-104.16) (   0.30,-102.78)  157.12                80
 02/17/2021   08:36:01   (  -0.01,-104.38) (   0.79,-108.06)  418.96                80
 02/18/2021   08:19:57   (  -0.01,-104.39) (  -0.23,-103.54)   98.28                80
 02/20/2021   20:23:07   (   0.01,-104.19) (  -0.02,-104.29)   11.90                80
 02/23/2021   08:23:30   (  -0.00,-104.40) (   0.14,-105.04)   73.04                80
 02/24/2021   08:07:26   (  -0.01,-104.40) (  -0.89,-100.51)  443.89                80
 02/25/2021   20:29:21   (  -0.00,-104.20) (  -0.33,-105.80)  181.83                80
 02/26/2021   20:07:56   (   0.00,-104.20) (   0.64,-101.26)  333.97                80