Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 3 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/19/2021   20:14:05   (  -0.09,-104.31) (   0.24,-102.74)  178.48                80
 03/21/2021   08:35:53   (   0.10,-104.40) (   0.89,-108.02)  411.48                80
 03/22/2021   08:19:47   (   0.10,-104.41) (  -0.10,-103.48)  105.18                80
 03/24/2021   20:20:18   (  -0.11,-104.30) (  -0.08,-104.25)    6.35                80
 03/27/2021   08:23:20   (   0.11,-104.37) (   0.27,-104.98)   69.80                80
 03/28/2021   08:07:16   (   0.11,-104.37) (  -0.77,-100.45)  446.91                80
 03/29/2021   20:29:11   (  -0.12,-104.29) (  -0.45,-105.74)  165.93                80
 03/30/2021   20:07:47   (  -0.11,-104.28) (   0.60,-101.22)  349.03                80
 04/01/2021   08:29:34   (   0.12,-104.33) (   0.57,-106.49)  245.08                80