Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 3 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/30/2020   09:52:35   (  -0.28,-127.92) (  -0.42,-127.37)   62.76                80
 04/01/2020   21:55:47   (   0.27,-127.85) (   0.23,-128.14)   32.70                80
 04/02/2020   21:39:41   (   0.27,-127.81) (   1.19,-123.60)  479.60                80
 04/04/2020   10:01:28   (  -0.25,-127.73) (   0.02,-128.86)  129.34                80
 04/05/2020   09:40:04   (  -0.26,-127.69) (  -1.00,-124.33)  382.17                80
 04/06/2020   22:04:40   (   0.23,-127.64) (  -0.21,-129.63)  226.71                80
 04/07/2020   21:43:16   (   0.25,-127.60) (   0.81,-125.10)  284.98                80
 04/09/2020   10:07:43   (  -0.23,-127.52) (   0.39,-130.37)  324.00                80
 04/10/2020   09:46:19   (  -0.24,-127.47) (  -0.63,-125.84)  186.95                80
 04/11/2020   22:10:54   (   0.21,-127.41) (  -0.63,-131.13)  423.41                80
 04/12/2020   21:49:29   (   0.23,-127.37) (   0.39,-126.60)   87.66                80