Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 4 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/09/2021   20:20:12   (  -0.15,-104.31) (  -0.10,-104.21)   11.96                80
 04/12/2021   08:23:14   (   0.15,-104.31) (   0.26,-104.95)   72.33                80
 04/13/2021   08:07:08   (   0.15,-104.31) (  -0.73,-100.41)  445.02                80
 04/14/2021   20:29:05   (  -0.15,-104.32) (  -0.43,-105.72)  158.15                80
 04/15/2021   20:07:39   (  -0.15,-104.31) (   0.56,-101.18)  357.49                80
 04/17/2021   08:29:25   (   0.15,-104.29) (   0.65,-106.43)  245.11                80
 04/18/2021   08:13:21   (   0.15,-104.29) (  -0.40,-101.91)  272.00                80
 04/19/2021   20:35:16   (  -0.15,-104.32) (  -0.81,-107.20)  328.82                80
 04/20/2021   20:13:51   (  -0.16,-104.31) (   0.18,-102.67)  186.72                80