Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 3 22.  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)
 03/23/2015   22:48:31   (  69.40,-163.30) 03/23/2015   22:49:42  (  69.29,-162.53)   32.68                71
 03/23/2015   23:39:06   ( -68.94,   4.67) 03/23/2015   23:39:16  ( -68.95,   4.67)    1.73                10
 03/24/2015   00:29:50   (  68.83, 172.13) 03/24/2015   00:28:43  (  68.85, 172.18)    3.08                67
 03/26/2015   15:05:16   (  69.04, -47.01) 03/26/2015   15:06:17  (  69.02, -47.00)    2.03                61
 03/26/2015   15:55:57   ( -68.89, 120.51) 03/26/2015   15:55:47  ( -68.91, 120.49)    2.90                10
 03/26/2015   16:46:32   (  68.29, -71.40) 03/26/2015   16:45:22  (  68.35, -72.55)   47.82                70
 03/29/2015   07:22:07   (  68.99,  68.83) 03/29/2015   07:22:47  (  69.00,  68.85)    1.10                40
 03/29/2015   08:12:48   ( -68.84,-123.65) 03/29/2015   08:12:18  ( -68.84,-123.72)    2.79                30
 03/31/2015   22:48:30   ( -69.90,  15.99) 03/31/2015   22:49:37  ( -69.78,  18.13)   83.14                67
 03/31/2015   23:38:58   (  68.95,-175.35) 03/31/2015   23:39:17  (  68.95,-175.33)    0.89                19
 04/01/2015   00:29:39   ( -68.85,  -7.89) 04/01/2015   00:28:46  ( -68.85,  -7.83)    2.73                53
 04/03/2015   15:05:06   ( -69.13, 132.88) 04/03/2015   15:06:17  ( -69.10, 133.10)    9.21                71
 04/03/2015   15:55:48   (  68.92, -59.53) 04/03/2015   15:55:45  (  68.92, -59.48)    2.01                 3
 04/03/2015   16:46:29   ( -68.76, 108.00) 04/03/2015   16:45:16  ( -68.77, 107.96)    1.80                73