Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 4 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/24/2021   20:41:29   (  -0.15,-104.32) (  -1.11,-108.71)  499.76                80
 04/25/2021   20:20:04   (  -0.15,-104.31) (  -0.12,-104.17)   16.15                80
 04/28/2021   08:23:04   (   0.15,-104.24) (   0.32,-104.89)   74.86                80
 04/29/2021   08:07:00   (   0.15,-104.24) (  -0.73,-100.37)  442.33                80
 04/30/2021   20:28:56   (  -0.15,-104.31) (  -0.42,-105.67)  154.53                80
 05/01/2021   20:07:31   (  -0.15,-104.30) (   0.57,-101.14)  361.22                80
 05/03/2021   08:29:17   (   0.15,-104.21) (   0.63,-106.39)  248.33                80
 05/04/2021   08:13:12   (   0.16,-104.22) (  -0.37,-101.86)  269.04                80
 05/05/2021   20:35:08   (  -0.15,-104.31) (  -0.78,-107.16)  324.72                80
 05/06/2021   20:13:43   (  -0.16,-104.31) (   0.22,-102.63)  191.58                80