Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2016 9 15.  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)
 09/15/2016   10:39:33   ( -68.43,-161.16) 09/15/2016   10:40:33  ( -68.45,-161.22)    3.07                60
 09/15/2016   11:30:18   (  68.35,   6.26) 09/15/2016   11:30:00  (  68.34,   6.29)    1.62                18
 09/15/2016   12:20:49   ( -67.68, 174.41) 09/15/2016   12:19:39  ( -67.72, 173.20)   50.92                70
 09/18/2016   02:56:27   ( -68.41, -45.36) 09/18/2016   02:56:59  ( -68.39, -45.40)    2.15                32
 09/18/2016   03:47:11   (  68.27, 122.12) 09/18/2016   03:46:26  (  68.28, 122.11)    1.70                45
 09/20/2016   18:22:42   (  68.72, -97.31) 09/20/2016   18:23:52  (  68.67, -96.80)   21.36                70
 09/20/2016   19:13:19   ( -68.38,  70.45) 09/20/2016   19:13:25  ( -68.39,  70.49)    1.76                 6
 09/20/2016   20:04:03   (  68.25,-122.07) 09/20/2016   20:02:53  (  68.22,-122.07)    2.90                70
 09/23/2016   10:39:26   (  68.43,  18.86) 09/23/2016   10:40:22  (  68.44,  18.80)    2.64                56
 09/23/2016   11:30:07   ( -68.31,-173.66) 09/23/2016   11:29:52  ( -68.33,-173.69)    2.66                15
 09/23/2016   12:20:39   (  67.53,  -5.38) 09/23/2016   12:19:30  (  67.60,  -6.90)   64.91                69
 09/26/2016   02:56:12   (  68.41, 134.70) 09/26/2016   02:56:48  (  68.43, 134.68)    2.06                36
 09/26/2016   03:46:53   ( -68.29, -57.83) 09/26/2016   03:46:19  ( -68.26, -57.88)    3.40                34
 09/28/2016   18:22:26   ( -69.37,  81.90) 09/28/2016   18:23:33  ( -69.25,  83.97)   82.22                67
 09/28/2016   19:12:54   (  68.39,-109.46) 09/28/2016   19:13:13  (  68.41,-109.44)    2.63                19
 09/28/2016   20:03:35   ( -68.27,  58.01) 09/28/2016   20:02:44  ( -68.25,  58.00)    2.11                51