Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 7 14.  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)
 07/16/2017   10:39:13   ( -69.36,-162.45) 07/16/2017   10:40:20  ( -69.22,-160.27)   87.41                67
 07/16/2017   11:29:40   (  68.33,   6.25) 07/16/2017   11:30:01  (  68.33,   6.26)    0.57                21
 07/16/2017   12:20:21   ( -68.20, 173.75) 07/16/2017   12:19:32  ( -68.17, 173.71)    3.20                49
 07/19/2017   02:55:52   ( -68.54, -45.54) 07/19/2017   02:57:04  ( -68.48, -45.32)   10.74                72
 07/19/2017   03:46:34   (  68.31, 122.06) 07/19/2017   03:46:32  (  68.31, 122.11)    2.13                 2
 07/19/2017   04:37:15   ( -68.17, -70.44) 07/19/2017   04:36:03  ( -68.15, -70.44)    1.42                72
 07/21/2017   19:12:44   ( -68.40,  70.41) 07/21/2017   19:13:36  ( -68.40,  70.45)    1.91                52
 07/21/2017   20:03:27   (  68.23,-122.07) 07/21/2017   20:03:04  (  68.23,-122.11)    1.87                23
 07/21/2017   20:53:55   ( -67.39,  46.30) 07/21/2017   20:52:46  ( -67.46,  44.64)   71.26                69
 07/24/2017   11:29:37   ( -68.33,-173.72) 07/24/2017   11:30:08  ( -68.32,-173.77)    2.37                31
 07/24/2017   12:20:21   (  68.22,  -6.27) 07/24/2017   12:19:35  (  68.20,  -6.27)    1.58                46
 07/27/2017   02:55:53   (  68.68, 134.28) 07/27/2017   02:57:04  (  68.61, 134.82)   22.79                71
 07/27/2017   03:46:30   ( -68.30, -57.91) 07/27/2017   03:46:38  ( -68.29, -57.94)    1.94                 8
 07/27/2017   04:37:13   (  68.14, 109.60) 07/27/2017   04:36:05  (  68.17, 109.56)    3.03                68