Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 8.  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)
 08/09/2017   10:39:26   (  69.00,  17.99) 08/09/2017   10:40:36  (  68.89,  19.27)   52.36                70
 08/09/2017   11:29:57   ( -68.32,-173.78) 08/09/2017   11:30:14  ( -68.34,-173.79)    2.17                17
 08/09/2017   12:20:41   (  68.20,  -6.32) 08/09/2017   12:19:42  (  68.17,  -6.34)    3.13                59
 08/12/2017   02:56:13   (  68.44, 134.51) 08/12/2017   02:57:14  (  68.43, 134.57)    2.63                61
 08/12/2017   03:46:54   ( -68.29, -57.98) 08/12/2017   03:46:45  ( -68.27, -58.00)    2.60                 9
 08/12/2017   04:37:30   (  67.74, 110.02) 08/12/2017   04:36:19  (  67.76, 109.06)   40.46                71
 08/14/2017   19:13:08   (  68.36,-109.62) 08/14/2017   19:13:44  (  68.34,-109.67)    3.00                36
 08/14/2017   20:03:50   ( -68.26,  57.82) 08/14/2017   20:03:14  ( -68.24,  57.84)    2.99                36
 08/17/2017   10:39:30   ( -68.93,-161.92) 08/17/2017   10:40:40  ( -68.79,-160.87)   44.53                70
 08/17/2017   11:30:05   (  68.34,   6.17) 08/17/2017   11:30:13  (  68.35,   6.22)    2.24                 8
 08/17/2017   12:20:46   ( -68.18, 173.69) 08/17/2017   12:19:44  ( -68.19, 173.66)    1.25                62
 08/20/2017   02:56:18   ( -68.42, -45.48) 08/20/2017   02:57:16  ( -68.40, -45.48)    2.79                58
 08/20/2017   03:47:01   (  68.26, 122.03) 08/20/2017   03:46:43  (  68.28, 122.02)    1.98                18
 08/20/2017   04:37:33   ( -67.62, -69.85) 08/20/2017   04:36:22  ( -67.68, -71.05)   51.22                71