Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2013 7 18.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19)   NOAA-19 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/21/2013   17:28:50   ( -80.93,  45.14) ( -80.94,  44.98)    2.82                57
 07/21/2013   18:19:48   (  80.94,-147.82) (  80.94,-147.67)    2.70                44
 07/21/2013   19:10:52   ( -80.90,  20.52) ( -80.90,  20.34)    3.25                23
 07/21/2013   20:01:51   (  80.92,-172.80) (  80.92,-172.68)    2.23                10
 07/21/2013   20:52:57   ( -80.91,  -5.20) ( -80.90,  -5.03)    2.89                12
 07/21/2013   21:43:52   (  80.89, 162.58) (  80.89, 162.67)    1.76                24
 07/21/2013   22:34:58   ( -80.87, -29.82) ( -80.87, -29.69)    2.45                46