Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 3 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/29/2020   10:13:59   (  -0.27,-127.95) (   0.59,-131.91)  449.94                80
 03/30/2020   09:52:35   (  -0.28,-127.92) (  -0.43,-127.38)   62.48                80
 04/01/2020   21:58:26   (   0.26,-127.86) (   0.18,-128.13)   32.35                80
 04/02/2020   21:39:41   (   0.27,-127.82) (   1.19,-123.60)  479.92                80
 04/04/2020   10:01:28   (  -0.25,-127.73) (   0.01,-128.87)  129.69                80
 04/05/2020   09:40:04   (  -0.26,-127.69) (  -1.00,-124.34)  381.80                80
 04/06/2020   22:04:40   (   0.23,-127.65) (  -0.20,-129.64)  226.42                80
 04/07/2020   21:43:16   (   0.25,-127.61) (   0.82,-125.11)  285.26                80
 04/09/2020   10:07:43   (  -0.22,-127.52) (   0.39,-130.37)  324.42                80
 04/10/2020   09:46:19   (  -0.24,-127.47) (  -0.63,-125.84)  186.53                80