Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 5 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/01/2021   20:07:34   (  -0.15,-104.31) (   0.57,-101.15)  360.91                80
 05/03/2021   08:29:22   (   0.14,-104.21) (   0.65,-106.41)  250.96                80
 05/04/2021   08:13:19   (   0.15,-104.21) (  -0.38,-101.89)  265.76                80
 05/05/2021   20:35:17   (  -0.14,-104.32) (  -0.78,-107.20)  327.70                80
 05/06/2021   20:13:52   (  -0.15,-104.32) (   0.20,-102.66)  188.04                80
 05/08/2021   08:35:42   (   0.14,-104.20) (   0.96,-107.94)  425.52                80
 05/09/2021   08:19:37   (   0.15,-104.21) (  -0.02,-103.41)   91.57                80
 05/10/2021   20:41:36   (  -0.13,-104.35) (  -1.14,-108.72)  499.41                80
 05/11/2021   20:20:12   (  -0.14,-104.34) (  -0.10,-104.20)   16.40                80
 05/14/2021   08:23:17   (   0.13,-104.21) (   0.28,-104.94)   82.59                80