Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 8 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/18/2021   08:27:14   (  -0.43,-104.20) (  -0.22,-105.24)  117.09                80
 08/19/2021   08:05:50   (  -0.42,-104.20) (  -1.21,-100.70)  398.74                80
 08/20/2021   20:27:48   (   0.44,-104.38) (   0.08,-106.02)  187.06                80
 08/21/2021   20:11:44   (   0.44,-104.39) (   1.07,-101.49)  330.40                80
 08/23/2021   08:33:32   (  -0.46,-104.23) (   0.11,-106.75)  287.70                80
 08/24/2021   08:12:08   (  -0.45,-104.23) (  -0.88,-102.22)  228.62                80
 08/25/2021   20:34:06   (   0.47,-104.39) (  -0.25,-107.54)  358.81                80
 08/26/2021   20:18:02   (   0.46,-104.41) (   0.80,-103.02)  159.17                80
 08/28/2021   08:39:50   (  -0.48,-104.28) (   0.44,-108.27)  455.75                80
 08/29/2021   08:18:26   (  -0.47,-104.28) (  -0.61,-103.75)   60.48                80