Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 8 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/06/2020   22:14:42   (   0.01,-128.27) (  -0.95,-132.59)  492.45                80
 08/07/2020   21:58:37   (   0.01,-128.26) (   0.05,-128.06)   22.47                80
 08/10/2020   09:59:01   (  -0.01,-128.27) (   0.13,-128.80)   60.37                80
 08/11/2020   09:40:18   (  -0.01,-128.25) (  -0.92,-124.28)  454.04                80
 08/12/2020   22:02:14   (   0.01,-128.17) (  -0.32,-129.57)  159.82                80
 08/13/2020   21:46:11   (   0.01,-128.15) (   0.73,-125.05)  354.21                80
 08/15/2020   10:05:19   (  -0.01,-128.17) (   0.44,-130.32)  244.64                80
 08/16/2020   09:49:14   (  -0.01,-128.14) (  -0.55,-125.78)  268.84                80
 08/17/2020   22:08:31   (   0.02,-128.04) (  -0.68,-131.08)  346.50                80
 08/18/2020   21:52:26   (   0.01,-128.02) (   0.31,-126.55)  166.82                80