Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 4 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/29/2021   08:07:00   (   0.15,-104.24) (  -0.73,-100.36)  442.18                80
 04/30/2021   20:28:56   (  -0.14,-104.32) (  -0.42,-105.67)  153.56                80
 05/01/2021   20:07:31   (  -0.15,-104.31) (   0.57,-101.13)  362.31                80
 05/03/2021   08:29:17   (   0.15,-104.22) (   0.62,-106.39)  247.99                80
 05/04/2021   08:13:12   (   0.15,-104.22) (  -0.37,-101.86)  269.47                80
 05/05/2021   20:35:08   (  -0.14,-104.33) (  -0.77,-107.16)  323.25                80
 05/06/2021   20:13:42   (  -0.15,-104.32) (   0.23,-102.63)  193.21                80
 05/08/2021   08:35:29   (   0.14,-104.21) (   0.97,-107.89)  418.77                80
 05/09/2021   08:19:23   (   0.15,-104.22) (  -0.03,-103.35)   99.05                80
 05/10/2021   20:41:19   (  -0.13,-104.35) (  -1.11,-108.66)  491.16                80
 05/11/2021   20:19:54   (  -0.14,-104.35) (  -0.10,-104.12)   25.41                80