Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 4 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/22/2021   08:35:37   (   0.15,-104.25) (   1.00,-107.93)  419.63                80
 04/23/2021   08:19:33   (   0.16,-104.25) (  -0.05,-103.40)   97.60                80
 04/25/2021   20:20:04   (  -0.16,-104.30) (  -0.11,-104.17)   15.33                80
 04/28/2021   08:23:05   (   0.15,-104.23) (   0.32,-104.89)   75.75                80
 04/29/2021   08:07:00   (   0.15,-104.23) (  -0.74,-100.37)  441.23                80
 04/30/2021   20:28:55   (  -0.15,-104.29) (  -0.47,-105.66)  156.32                80
 05/01/2021   20:07:30   (  -0.16,-104.28) (   0.53,-101.13)  359.20                80
 05/03/2021   08:29:17   (   0.15,-104.20) (   0.61,-106.40)  250.24                80
 05/04/2021   08:13:12   (   0.16,-104.20) (  -0.39,-101.86)  266.97                80