Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 5 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/04/2021   08:13:18   (   0.15,-104.21) (  -0.38,-101.88)  265.40                80
 05/05/2021   20:35:17   (  -0.14,-104.32) (  -0.78,-107.20)  328.01                80
 05/06/2021   20:13:52   (  -0.15,-104.31) (   0.19,-102.66)  187.58                80
 05/08/2021   08:35:42   (   0.14,-104.20) (   0.96,-107.94)  426.49                80
 05/09/2021   08:19:37   (   0.15,-104.20) (  -0.01,-103.40)   90.46                80
 05/11/2021   20:20:12   (  -0.14,-104.33) (  -0.11,-104.20)   15.17                80
 05/14/2021   08:23:17   (   0.13,-104.19) (   0.28,-104.94)   84.47                80
 05/15/2021   08:07:12   (   0.14,-104.20) (  -0.69,-100.40)  432.23                80
 05/16/2021   20:29:11   (  -0.12,-104.33) (  -0.45,-105.72)  158.27                80
 05/17/2021   20:07:47   (  -0.13,-104.33) (   0.59,-101.20)  357.34                80