Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 9 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/02/2021   20:21:37   (  -0.31,-104.22) (  -0.36,-104.34)   14.19                80
 10/05/2021   08:27:21   (   0.30,-104.23) (   0.52,-105.08)   97.71                80
 10/06/2021   08:05:56   (   0.31,-104.22) (  -0.49,-100.55)  417.63                80
 10/07/2021   20:27:54   (  -0.29,-104.21) (  -0.65,-105.86)  188.56                80
 10/08/2021   20:11:49   (  -0.30,-104.21) (   0.36,-101.33)  329.08                80
 10/10/2021   08:33:38   (   0.28,-104.25) (   0.81,-106.60)  268.40                80
 10/11/2021   08:12:13   (   0.29,-104.23) (  -0.20,-102.07)  246.50                80
 10/12/2021   20:34:09   (  -0.26,-104.17) (  -0.99,-107.37)  364.71                80
 10/13/2021   20:18:05   (  -0.27,-104.18) (   0.02,-102.84)  152.58                80