Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 8 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)
 08/20/2021   20:27:34   (  -0.41,-104.37) (  -0.73,-105.84)  167.59                80
 08/21/2021   20:11:30   (  -0.40,-104.37) (   0.26,-101.30)  349.02                80
 08/23/2021   08:33:18   (   0.41,-104.19) (   0.92,-106.57)  271.26                80
 08/24/2021   08:11:54   (   0.40,-104.18) (  -0.07,-102.04)  243.77                80
 08/25/2021   20:33:52   (  -0.41,-104.35) (  -1.06,-107.36)  341.84                80
 08/26/2021   20:17:48   (  -0.41,-104.36) (  -0.06,-102.82)  175.39                80
 08/28/2021   08:39:35   (   0.41,-104.21) (   1.30,-108.08)  441.25                80
 08/29/2021   08:18:11   (   0.41,-104.20) (   0.25,-103.56)   73.81                80
 08/31/2021   20:24:05   (  -0.41,-104.35) (  -0.38,-104.34)    3.08                80