Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 7 2.  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)
 07/03/2017   02:55:53   ( -68.37, -45.35) 07/03/2017   02:56:57  ( -68.39, -45.40)    3.34                64
 07/03/2017   03:46:38   (  68.28, 122.07) 07/03/2017   03:46:24  (  68.28, 122.11)    2.05                14
 07/03/2017   04:37:12   ( -67.78, -69.98) 07/03/2017   04:36:00  ( -67.84, -70.77)   33.57                72
 07/05/2017   19:12:47   ( -68.38,  70.41) 07/05/2017   19:13:27  ( -68.38,  70.46)    2.26                40
 07/05/2017   20:03:30   (  68.20,-122.05) 07/05/2017   20:02:55  (  68.21,-122.10)    2.42                35
 07/08/2017   10:39:11   (  69.07,  17.94) 07/08/2017   10:40:20  (  68.96,  19.42)   60.23                69
 07/08/2017   11:29:40   ( -68.29,-173.70) 07/08/2017   11:30:00  ( -68.30,-173.76)    2.67                20
 07/08/2017   12:20:24   (  68.16,  -6.23) 07/08/2017   12:19:27  (  68.19,  -6.25)    2.55                57
 07/11/2017   02:55:53   (  68.40, 134.61) 07/11/2017   02:57:02  (  68.43, 134.62)    3.37                69
 07/11/2017   03:46:34   ( -68.26, -57.88) 07/11/2017   03:46:33  ( -68.28, -57.93)    2.78                 1
 07/11/2017   04:37:15   (  67.97, 109.78) 07/11/2017   04:36:02  (  68.05, 109.45)   16.16                73
 07/13/2017   19:12:47   (  68.37,-109.58) 07/13/2017   19:13:36  (  68.40,-109.56)    2.61                49
 07/13/2017   20:03:28   ( -68.23,  57.93) 07/13/2017   20:03:07  ( -68.25,  57.90)    2.60                21
 07/13/2017   20:53:56   (  67.24,-133.56) 07/13/2017   20:52:49  (  67.29,-135.56)   86.10                67
 07/16/2017   11:29:40   (  68.35,   6.23) 07/16/2017   11:30:10  (  68.36,   6.25)    1.09                30
 07/16/2017   12:20:21   ( -68.20, 173.74) 07/16/2017   12:19:41  ( -68.21, 173.71)    1.88                40