Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2016 5 11.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/13/2016   02:06:41   (  69.06, 146.35) 05/13/2016   02:07:50  (  68.95, 147.55)   49.36                69
 05/13/2016   02:57:13   ( -68.45, -45.51) 05/13/2016   02:57:27  ( -68.45, -45.44)    2.75                14
 05/13/2016   03:47:56   (  68.26, 122.04) 05/13/2016   03:46:55  (  68.29, 122.01)    3.07                61
 05/15/2016   18:23:26   (  68.51, -97.14) 05/15/2016   18:24:30  (  68.48, -97.17)    3.01                64
 05/15/2016   19:14:07   ( -68.38,  70.35) 05/15/2016   19:14:00  ( -68.38,  70.34)    0.56                 7
 05/15/2016   20:04:44   (  67.87,-121.70) 05/15/2016   20:03:33  (  67.93,-122.54)   36.13                71
 05/18/2016   10:40:19   (  68.44,  18.72) 05/18/2016   10:41:01  (  68.46,  18.68)    2.94                42
 05/18/2016   11:31:01   ( -68.36,-173.86) 05/18/2016   11:30:31  ( -68.36,-173.82)    1.81                30
 05/21/2016   02:06:45   ( -69.35, -34.06) 05/21/2016   02:07:53  ( -69.27, -32.08)   78.64                68
 05/21/2016   02:57:14   (  68.43, 134.50) 05/21/2016   02:57:33  (  68.43, 134.52)    1.15                19
 05/21/2016   03:47:55   ( -68.29, -58.00) 05/21/2016   03:47:04  ( -68.28, -58.04)    1.94                51
 05/23/2016   18:23:26   ( -68.59,  82.74) 05/23/2016   18:24:37  ( -68.58,  82.92)    7.33                71
 05/23/2016   19:14:09   (  68.42,-109.71) 05/23/2016   19:14:05  (  68.41,-109.65)    2.94                 4
 05/23/2016   20:04:49   ( -68.23,  57.85) 05/23/2016   20:03:36  ( -68.26,  57.80)    3.81                73