Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 4 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)
 04/04/2021   20:13:59   (  -0.13,-104.31) (   0.23,-102.71)  182.12                80
 04/06/2021   08:35:46   (   0.14,-104.32) (   0.93,-107.98)  416.56                80
 04/07/2021   08:19:41   (   0.14,-104.32) (  -0.05,-103.44)  100.58                80
 04/09/2021   20:20:12   (  -0.15,-104.32) (  -0.12,-104.21)   12.13                80
 04/12/2021   08:23:13   (   0.15,-104.32) (   0.28,-104.94)   71.01                80
 04/13/2021   08:07:08   (   0.15,-104.33) (  -0.71,-100.40)  446.47                80
 04/14/2021   20:29:04   (  -0.15,-104.34) (  -0.45,-105.71)  156.53                80
 04/15/2021   20:07:39   (  -0.15,-104.33) (   0.54,-101.17)  359.27                80
 04/17/2021   08:29:26   (   0.15,-104.31) (   0.61,-106.44)  242.84                80