Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 6 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/15/2021   08:23:42   (  -0.00,-104.09) (   0.19,-105.03)  105.93                80
 06/16/2021   08:07:37   (   0.01,-104.09) (  -0.78,-100.49)  410.60                80
 06/17/2021   20:26:57   (   0.02,-104.32) (  -0.31,-105.82)  170.66                80
 06/18/2021   20:10:52   (   0.00,-104.32) (   0.67,-101.28)  345.52                80
 06/20/2021   08:30:02   (  -0.04,-104.08) (   0.50,-106.56)  281.56                80
 06/21/2021   08:13:57   (  -0.02,-104.08) (  -0.47,-102.02)  234.75                80
 06/22/2021   20:33:16   (   0.06,-104.31) (  -0.61,-107.35)  346.35                80
 06/23/2021   20:17:12   (   0.04,-104.30) (   0.37,-102.81)  169.51                80
 06/25/2021   08:36:21   (  -0.08,-104.06) (   0.80,-108.09)  458.59                80
 06/26/2021   08:20:17   (  -0.06,-104.06) (  -0.17,-103.55)   57.51                80