Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 26.  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)
 08/28/2017   02:56:25   (  68.41, 134.52) 08/28/2017   02:57:18  (  68.41, 134.51)    0.44                53
 08/28/2017   03:47:07   ( -68.31, -58.05) 08/28/2017   03:46:48  ( -68.30, -57.99)    3.02                19
 08/28/2017   04:37:36   (  67.38, 110.42) 08/28/2017   04:36:28  (  67.46, 108.69)   74.14                68
 08/30/2017   19:13:22   (  68.39,-109.70) 08/30/2017   19:13:48  (  68.38,-109.65)    2.58                26
 08/30/2017   20:04:03   ( -68.24,  57.81) 08/30/2017   20:03:18  ( -68.27,  57.85)    3.00                45
 09/02/2017   10:39:36   ( -68.60,-161.52) 09/02/2017   10:40:48  ( -68.56,-161.20)   13.89                72
 09/02/2017   11:30:17   (  68.33,   6.15) 09/02/2017   11:30:17  (  68.34,   6.18)    2.16                 0
 09/02/2017   12:20:58   ( -68.18, 173.66) 09/02/2017   12:19:48  ( -68.18, 173.62)    1.69                70
 09/05/2017   02:56:30   ( -68.43, -45.53) 09/05/2017   02:57:20  ( -68.41, -45.50)    2.17                50
 09/05/2017   03:47:13   (  68.26, 122.00) 09/05/2017   03:46:48  (  68.25, 121.94)    2.91                25
 09/05/2017   04:37:40   ( -67.36, -69.57) 09/05/2017   04:36:31  ( -67.41, -71.38)   77.85                69
 09/07/2017   18:23:00   (  69.32, -98.29) 09/07/2017   18:24:07  (  69.20, -96.27)   80.78                67
 09/07/2017   19:13:26   ( -68.37,  70.32) 09/07/2017   19:13:50  ( -68.37,  70.33)    0.53                24
 09/07/2017   20:04:10   (  68.25,-122.22) 09/07/2017   20:03:17  (  68.26,-122.17)    2.45                53