Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 7 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/09/2021   20:17:27   (   0.16,-104.34) (   0.49,-102.87)  167.17                80
 07/11/2021   08:36:35   (  -0.19,-104.09) (   0.73,-108.14)  461.69                80
 07/12/2021   08:20:32   (  -0.18,-104.09) (  -0.31,-103.61)   54.66                80
 07/14/2021   20:21:05   (   0.19,-104.33) (   0.15,-104.40)    8.08                80
 07/17/2021   08:24:10   (  -0.21,-104.09) (   0.02,-105.14)  119.43                80
 07/18/2021   08:08:06   (  -0.19,-104.09) (  -0.96,-100.60)  396.79                80
 07/19/2021   20:27:25   (   0.23,-104.32) (  -0.11,-105.93)  183.10                80
 07/20/2021   20:11:21   (   0.22,-104.32) (   0.87,-101.40)  333.29                80
 07/22/2021   08:30:29   (  -0.26,-104.08) (   0.34,-106.66)  294.85                80