Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 31.  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)
 09/02/2017   10:39:36   ( -68.61,-161.53) 09/02/2017   10:40:48  ( -68.55,-161.20)   14.82                72
 09/02/2017   11:30:17   (  68.33,   6.15) 09/02/2017   11:30:17  (  68.33,   6.17)    1.03                 0
 09/02/2017   12:20:58   ( -68.18, 173.65) 09/02/2017   12:19:48  ( -68.16, 173.61)    2.99                70
 09/05/2017   02:56:29   ( -68.38, -45.47) 09/05/2017   02:57:20  ( -68.39, -45.52)    2.22                51
 09/05/2017   03:47:13   (  68.26, 122.00) 09/05/2017   03:46:47  (  68.28, 121.99)    1.17                26
 09/05/2017   04:37:39   ( -67.31, -69.51) 09/05/2017   04:36:31  ( -67.39, -71.40)   81.26                68
 09/07/2017   18:22:59   (  69.27, -98.22) 09/07/2017   18:24:07  (  69.16, -96.31)   76.68                68
 09/07/2017   19:13:26   ( -68.38,  70.31) 09/07/2017   19:13:49  ( -68.39,  70.36)    2.48                23
 09/07/2017   20:04:09   (  68.20,-122.16) 09/07/2017   20:03:17  (  68.22,-122.20)    2.12                52
 09/10/2017   10:39:40   (  68.41,  18.71) 09/10/2017   10:40:49  (  68.43,  18.65)    2.88                69
 09/10/2017   11:30:22   ( -68.32,-173.85) 09/10/2017   11:30:19  ( -68.33,-173.84)    1.21                 3
 09/10/2017   12:21:02   (  67.98,  -6.12) 09/10/2017   12:19:49  (  68.04,  -6.53)   18.25                73
 09/13/2017   02:56:36   (  68.41, 134.48) 09/13/2017   02:57:17  (  68.41, 134.51)    1.42                41
 09/13/2017   03:47:17   ( -68.26, -58.01) 09/13/2017   03:46:48  ( -68.26, -58.04)    1.33                29