Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 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)
 08/04/2017   02:56:04   ( -68.44, -45.46) 08/04/2017   02:57:12  ( -68.45, -45.41)    2.09                68
 08/04/2017   03:46:47   (  68.27, 122.07) 08/04/2017   03:46:40  (  68.27, 122.03)    2.14                 7
 08/04/2017   04:37:25   ( -67.96, -70.22) 08/04/2017   04:36:13  ( -68.01, -70.66)   19.04                72
 08/06/2017   19:13:01   ( -68.40,  70.35) 08/06/2017   19:13:43  ( -68.39,  70.40)    2.34                42
 08/06/2017   20:03:44   (  68.23,-122.12) 08/06/2017   20:03:11  (  68.22,-122.16)    2.15                33
 08/09/2017   10:39:26   (  69.01,  17.99) 08/09/2017   10:40:36  (  68.88,  19.24)   52.23                70
 08/09/2017   11:29:57   ( -68.32,-173.78) 08/09/2017   11:30:14  ( -68.33,-173.80)    2.10                17
 08/09/2017   12:20:41   (  68.21,  -6.32) 08/09/2017   12:19:41  (  68.22,  -6.29)    1.81                60
 08/12/2017   02:56:13   (  68.45, 134.50) 08/12/2017   02:57:14  (  68.42, 134.55)    3.10                61
 08/12/2017   03:46:54   ( -68.29, -57.97) 08/12/2017   03:46:45  ( -68.27, -58.00)    2.24                 9
 08/12/2017   04:37:30   (  67.75, 110.01) 08/12/2017   04:36:19  (  67.76, 109.05)   40.69                71
 08/14/2017   19:13:08   (  68.37,-109.63) 08/14/2017   19:13:44  (  68.35,-109.66)    2.04                36
 08/14/2017   20:03:50   ( -68.26,  57.83) 08/14/2017   20:03:14  ( -68.25,  57.86)    1.33                36