Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2016 6 13.  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)
 06/14/2016   02:57:10   ( -68.47, -45.56) 06/14/2016   02:57:44  ( -68.47, -45.49)    2.68                34
 06/14/2016   03:47:54   (  68.33, 121.93) 06/14/2016   03:47:12  (  68.30, 121.95)    3.36                42
 06/16/2016   18:23:29   (  68.88, -97.65) 06/16/2016   18:24:40  (  68.78, -96.86)   33.53                71
 06/16/2016   19:14:03   ( -68.38,  70.33) 06/16/2016   19:14:15  ( -68.40,  70.30)    2.80                12
 06/16/2016   20:04:48   (  68.29,-122.25) 06/16/2016   20:03:42  (  68.28,-122.19)    2.80                66
 06/19/2016   10:40:16   (  68.47,  18.67) 06/19/2016   10:41:15  (  68.48,  18.64)    1.38                59
 06/19/2016   11:30:57   ( -68.34,-173.85) 06/19/2016   11:30:46  ( -68.32,-173.91)    3.12                11
 06/19/2016   12:21:31   (  67.67,  -5.70) 06/19/2016   12:20:21  (  67.76,  -6.93)   52.92                70
 06/22/2016   02:57:10   (  68.44, 134.48) 06/22/2016   02:57:45  (  68.45, 134.49)    1.51                35
 06/22/2016   03:47:51   ( -68.30, -58.03) 06/22/2016   03:47:16  ( -68.30, -58.06)    1.46                35
 06/24/2016   18:23:29   ( -69.06,  82.10) 06/24/2016   18:24:39  ( -68.98,  83.38)   51.87                70
 06/24/2016   19:14:03   (  68.41,-109.71) 06/24/2016   19:14:14  (  68.42,-109.67)    1.85                11
 06/24/2016   20:04:44   ( -68.27,  57.78) 06/24/2016   20:03:45  ( -68.27,  57.78)    0.33                59