Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 7 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/06/2021   08:30:16   (  -0.15,-104.09) (   0.42,-106.61)  287.00                80
 07/07/2021   08:14:12   (  -0.13,-104.09) (  -0.56,-102.07)  229.39                80
 07/08/2021   20:33:31   (   0.17,-104.34) (  -0.52,-107.41)  349.66                80
 07/09/2021   20:17:26   (   0.16,-104.34) (   0.46,-102.87)  166.86                80
 07/11/2021   08:36:36   (  -0.19,-104.09) (   0.71,-108.14)  461.85                80
 07/12/2021   08:20:31   (  -0.18,-104.09) (  -0.27,-103.61)   54.40                80
 07/14/2021   20:21:06   (   0.19,-104.33) (   0.17,-104.40)    8.34                80
 07/17/2021   08:24:11   (  -0.21,-104.09) (   0.01,-105.14)  119.94                80
 07/18/2021   08:08:06   (  -0.19,-104.08) (  -0.97,-100.61)  396.22                80