Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 2 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/23/2020   22:08:12   (   0.36,-128.45) (  -0.25,-131.17)  310.12                80
 02/24/2020   21:52:07   (   0.36,-128.46) (   0.75,-126.64)  206.80                80
 02/26/2020   10:13:55   (  -0.36,-128.44) (   0.42,-131.91)  396.07                80
 02/27/2020   09:52:31   (  -0.36,-128.44) (  -0.58,-127.38)  120.47                80
 02/28/2020   22:14:28   (   0.36,-128.47) (  -0.57,-132.69)  481.65                80
 02/29/2020   21:58:24   (   0.36,-128.47) (   0.43,-128.16)   34.67                80
 03/03/2020   10:01:28   (  -0.35,-128.43) (  -0.26,-128.90)   53.24                80
 03/04/2020   09:40:03   (  -0.35,-128.43) (  -1.27,-124.37)  462.25                80
 03/05/2020   22:01:59   (   0.34,-128.43) (   0.06,-129.67)  141.51                80
 03/06/2020   21:45:55   (   0.34,-128.42) (   1.07,-125.14)  373.70                80