Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 7 5.  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)
 07/05/2017   19:12:47   ( -68.38,  70.40) 07/05/2017   19:13:26  ( -68.36,  70.44)    3.25                39
 07/05/2017   20:03:31   (  68.25,-122.12) 07/05/2017   20:02:53  (  68.24,-122.05)    2.84                38
 07/08/2017   10:39:09   (  68.96,  18.09) 07/08/2017   10:40:19  (  68.84,  19.28)   49.59                70
 07/08/2017   11:29:40   ( -68.29,-173.70) 07/08/2017   11:29:57  ( -68.29,-173.76)    2.33                17
 07/08/2017   12:20:24   (  68.16,  -6.23) 07/08/2017   12:19:24  (  68.17,  -6.26)    1.59                60
 07/11/2017   02:55:53   (  68.40, 134.62) 07/11/2017   02:56:57  (  68.38, 134.59)    1.70                64
 07/11/2017   03:46:34   ( -68.26, -57.88) 07/11/2017   03:46:27  ( -68.29, -57.89)    3.18                 7
 07/11/2017   04:37:11   (  67.75, 110.06) 07/11/2017   04:36:00  (  67.83, 109.22)   36.20                71
 07/13/2017   19:12:47   (  68.37,-109.57) 07/13/2017   19:13:27  (  68.38,-109.54)    2.09                40
 07/13/2017   20:03:28   ( -68.22,  57.94) 07/13/2017   20:02:58  ( -68.23,  57.91)    1.19                30
 07/16/2017   10:39:11   ( -69.20,-162.22) 07/16/2017   10:40:19  ( -69.11,-160.39)   72.89                68
 07/16/2017   11:29:40   (  68.34,   6.25) 07/16/2017   11:29:57  (  68.33,   6.27)    1.45                17
 07/16/2017   12:20:21   ( -68.19, 173.76) 07/16/2017   12:19:28  ( -68.18, 173.73)    1.75                53
 07/19/2017   02:55:50   ( -68.42, -45.39) 07/19/2017   02:57:01  ( -68.40, -45.41)    1.84                71
 07/19/2017   03:46:33   (  68.25, 122.13) 07/19/2017   03:46:28  (  68.28, 122.09)    3.18                 5
 07/19/2017   04:37:13   ( -68.05, -70.29) 07/19/2017   04:36:00  ( -68.07, -70.52)    9.98                73