Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 10 19.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/20/2017   21:43:07   (  80.70, 164.22) 10/20/2017   21:44:19  (  80.77, 165.64)   26.33                72
 10/20/2017   22:34:04   ( -80.76, -26.88) 10/20/2017   22:35:03  ( -80.75, -26.84)    0.71                59
 10/20/2017   23:25:04   (  80.76, 140.32) 10/20/2017   23:25:49  (  80.77, 140.23)    2.05                45
 10/21/2017   00:16:05   ( -80.76, -52.23) 10/21/2017   00:16:33  ( -80.76, -52.25)    0.90                28
 10/21/2017   01:07:04   (  80.76, 114.97) 10/21/2017   01:07:18  (  80.77, 114.82)    2.92                14
 10/21/2017   01:58:05   ( -80.77, -77.57) 10/21/2017   01:58:02  ( -80.76, -77.66)    1.91                 3
 10/21/2017   02:49:05   (  80.77,  89.63) 10/21/2017   02:48:47  (  80.75,  89.76)    2.77                18
 10/21/2017   03:40:06   ( -80.77,-102.92) 10/21/2017   03:39:32  ( -80.76,-103.07)    2.99                34
 10/21/2017   04:31:07   (  80.76,  63.93) 10/21/2017   04:30:18  (  80.77,  64.00)    2.06                49