Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 23.  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)
 08/25/2017   10:39:34   (  68.72,  18.34) 08/25/2017   10:40:45  (  68.64,  18.91)   24.94                71
 08/25/2017   11:30:10   ( -68.30,-173.80) 08/25/2017   11:30:19  ( -68.31,-173.86)    2.63                 9
 08/25/2017   12:20:54   (  68.19,  -6.34) 08/25/2017   12:19:46  (  68.20,  -6.35)    1.14                68
 08/28/2017   02:56:25   (  68.38, 134.55) 08/28/2017   02:57:19  (  68.40, 134.49)    2.93                54
 08/28/2017   03:47:06   ( -68.28, -58.01) 08/28/2017   03:46:48  ( -68.29, -58.01)    0.54                18
 08/28/2017   04:37:36   (  67.41, 110.38) 08/28/2017   04:36:28  (  67.45, 108.67)   73.15                68
 08/30/2017   19:13:21   (  68.37,-109.67) 08/30/2017   19:13:48  (  68.38,-109.66)    1.41                27
 08/30/2017   20:04:02   ( -68.21,  57.85) 08/30/2017   20:03:19  ( -68.22,  57.78)    2.73                43
 09/02/2017   10:39:38   ( -68.68,-161.62) 09/02/2017   10:40:49  ( -68.59,-161.18)   20.55                71
 09/02/2017   11:30:17   (  68.30,   6.19) 09/02/2017   11:30:19  (  68.31,   6.13)    2.54                 2
 09/02/2017   12:20:59   ( -68.20, 173.63) 09/02/2017   12:19:49  ( -68.20, 173.64)    0.56                70
 09/05/2017   02:56:30   ( -68.39, -45.48) 09/05/2017   02:57:22  ( -68.40, -45.52)    2.00                52
 09/05/2017   03:47:14   (  68.28, 121.97) 09/05/2017   03:46:49  (  68.29, 121.98)    0.75                25
 09/05/2017   04:37:41   ( -67.38, -69.59) 09/05/2017   04:36:33  ( -67.40, -71.40)   77.59                68