Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 10 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/21/2021   08:27:35   (   0.23,-104.29) (   0.43,-105.12)   95.14                80
 10/22/2021   08:06:12   (   0.25,-104.28) (  -0.56,-100.59)  419.86                80
 10/23/2021   20:28:10   (  -0.22,-104.18) (  -0.63,-105.90)  196.60                80
 10/24/2021   20:12:08   (  -0.23,-104.19) (   0.42,-101.38)  320.64                80
 10/26/2021   08:33:58   (   0.20,-104.31) (   0.75,-106.66)  268.10                80
 10/27/2021   08:12:34   (   0.22,-104.30) (  -0.24,-102.13)  246.71                80
 10/28/2021   20:34:33   (  -0.18,-104.16) (  -0.95,-107.44)  374.25                80
 10/29/2021   20:18:30   (  -0.19,-104.17) (   0.11,-102.92)  142.84                80
 10/31/2021   08:40:21   (   0.16,-104.33) (   1.01,-108.21)  441.78                80
 11/01/2021   08:18:58   (   0.18,-104.32) (   0.01,-103.68)   73.28                80