Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 12 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/16/2021   20:18:29   (  -0.03,-104.19) (   0.25,-102.92)  144.72                80
 12/18/2021   08:40:16   (   0.01,-104.52) (   0.84,-108.20)  420.52                80
 12/19/2021   08:18:50   (   0.02,-104.51) (  -0.14,-103.66)   96.19                80
 12/21/2021   20:21:57   (  -0.02,-104.19) (  -0.09,-104.41)   26.07                80
 12/22/2021   20:05:52   (  -0.02,-104.20) (   0.94, -99.88)  491.61                80
 12/24/2021   08:27:39   (   0.01,-104.53) (   0.14,-105.17)   73.00                80
 12/25/2021   08:06:13   (   0.01,-104.52) (  -0.83,-100.62)  443.72                80
 12/26/2021   20:28:07   (   0.00,-104.19) (  -0.37,-105.92)  196.39                80
 12/27/2021   20:12:01   (  -0.00,-104.20) (   0.61,-101.38)  321.18                80
 12/29/2021   08:33:48   (  -0.01,-104.54) (   0.47,-106.66)  241.91                80