Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 4 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/07/2022   21:58:51   (  -0.12,-128.42) (  -0.03,-128.07)   39.95                80
 04/10/2022   10:01:53   (   0.12,-128.40) (   0.21,-128.80)   45.67                80
 04/11/2022   09:40:27   (   0.13,-128.39) (  -0.77,-124.26)  470.50                80
 04/12/2022   22:02:24   (  -0.13,-128.40) (  -0.38,-129.57)  133.20                80
 04/13/2022   21:46:18   (  -0.13,-128.39) (   0.61,-125.03)  382.98                80
 04/15/2022   10:08:05   (   0.13,-128.37) (   0.56,-130.30)  219.54                80
 04/16/2022   09:46:40   (   0.13,-128.36) (  -0.43,-125.76)  296.13                80
 04/17/2022   22:08:36   (  -0.12,-128.36) (  -0.71,-131.07)  309.00                80
 04/18/2022   21:52:31   (  -0.13,-128.34) (   0.28,-126.53)  206.36                80
 04/20/2022   10:11:38   (   0.12,-128.31) (   0.87,-131.80)  397.37                80