Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 2 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/10/2020   10:11:09   (  -0.36,-128.25) (   0.47,-131.87)  413.63                80
 02/11/2020   09:55:06   (  -0.35,-128.28) (  -0.59,-127.35)  106.35                80
 02/12/2020   22:14:22   (   0.37,-128.33) (  -0.63,-132.65)  493.40                80
 02/13/2020   21:58:18   (   0.36,-128.36) (   0.43,-128.14)   26.54                80
 02/16/2020   09:58:42   (  -0.36,-128.44) (  -0.24,-128.87)   50.35                80
 02/17/2020   09:42:39   (  -0.35,-128.46) (  -1.30,-124.36)  468.98                80
 02/18/2020   22:01:55   (   0.36,-128.50) (   0.09,-129.66)  131.72                80
 02/19/2020   21:45:51   (   0.35,-128.53) (   1.09,-125.12)  387.45                80
 02/21/2020   10:05:00   (  -0.36,-128.57) (   0.03,-130.41)  209.48                80
 02/22/2020   09:48:55   (  -0.35,-128.59) (  -0.97,-125.88)  309.40                80