Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 1 14.  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)
 01/16/2015   05:42:26   ( -70.21, -87.56) 01/16/2015   05:43:32  ( -70.11, -84.98)   98.24                66
 01/16/2015   06:32:52   (  69.12,  81.33) 01/16/2015   06:33:15  (  69.13,  81.33)    1.29                23
 01/16/2015   07:23:33   ( -69.00,-111.19) 01/16/2015   07:22:45  ( -69.02,-111.18)    2.08                48
 01/18/2015   21:59:03   ( -69.54,  29.21) 01/18/2015   22:00:14  ( -69.43,  29.95)   31.47                71
 01/18/2015   22:49:41   (  69.09,-162.85) 01/18/2015   22:49:45  (  69.09,-162.84)    1.09                 4
 01/18/2015   23:40:22   ( -68.97,   4.64) 01/18/2015   23:39:15  ( -68.99,   4.66)    2.68                67
 01/21/2015   14:15:46   ( -69.19, 145.48) 01/21/2015   14:16:47  ( -69.20, 145.53)    2.34                61
 01/21/2015   15:06:30   (  69.06, -47.03) 01/21/2015   15:06:15  (  69.03, -47.04)    3.31                15
 01/21/2015   15:57:03   ( -68.51, 121.03) 01/21/2015   15:55:52  ( -68.54, 119.98)   42.80                71
 01/24/2015   06:32:33   ( -69.11, -98.63) 01/24/2015   06:33:16  ( -69.11, -98.70)    2.84                43
 01/24/2015   07:23:17   (  68.99,  68.85) 01/24/2015   07:22:43  (  68.99,  68.79)    2.38                34
 01/26/2015   21:58:55   (  69.97,-151.41) 01/26/2015   22:00:02  (  69.86,-149.44)   75.90                67
 01/26/2015   22:49:22   ( -69.10,  17.17) 01/26/2015   22:49:44  ( -69.10,  17.17)    0.51                22
 01/26/2015   23:40:06   (  68.98,-175.35) 01/26/2015   23:39:11  (  68.98,-175.34)    0.61                55