Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 11 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/11/2020   21:58:31   (   0.10,-127.72) (  -0.00,-128.06)   40.03                80
 11/12/2020   21:37:07   (   0.11,-127.68) (   1.05,-123.54)  472.13                80
 11/14/2020   10:01:33   (  -0.09,-127.60) (   0.15,-128.80)  135.85                80
 11/15/2020   09:40:08   (  -0.10,-127.56) (  -0.85,-124.27)  376.05                80
 11/16/2020   22:04:42   (   0.07,-127.51) (  -0.40,-129.56)  233.01                80
 11/17/2020   21:43:16   (   0.08,-127.47) (   0.60,-125.02)  278.24                80
 11/19/2020   10:07:43   (  -0.06,-127.38) (   0.60,-130.28)  331.08                80
 11/20/2020   09:46:17   (  -0.08,-127.33) (  -0.40,-125.75)  180.15                80
 11/21/2020   22:10:53   (   0.05,-127.28) (  -0.78,-131.05)  429.15                80
 11/22/2020   21:49:27   (   0.07,-127.23) (   0.22,-126.52)   81.85                80
 11/25/2020   09:55:08   (  -0.05,-127.10) (  -0.03,-127.24)   16.64                80