Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 3 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/26/2020   22:10:56   (   0.28,-128.06) (  -0.41,-131.17)  354.89                80
 03/27/2020   21:50:13   (   0.29,-128.03) (   0.61,-126.64)  158.24                39
 03/29/2020   10:13:59   (  -0.27,-127.95) (   0.60,-131.90)  449.86                80
 03/30/2020   09:52:35   (  -0.28,-127.92) (  -0.41,-127.37)   62.41                80
 04/01/2020   21:55:46   (   0.27,-127.85) (   0.22,-128.14)   33.05                80
 04/02/2020   21:39:18   (   0.27,-127.81) (   1.23,-123.61)  479.08                56
 04/04/2020   10:01:28   (  -0.25,-127.72) (   0.03,-128.86)  130.18                80
 04/05/2020   09:40:04   (  -0.26,-127.68) (  -0.99,-124.33)  381.26                80
 04/06/2020   22:04:40   (   0.23,-127.64) (  -0.22,-129.63)  227.62                80
 04/07/2020   21:43:16   (   0.25,-127.60) (   0.80,-125.10)  283.97                80
 04/09/2020   10:07:43   (  -0.22,-127.51) (   0.41,-130.36)  325.32                80