Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 8 29.  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)
 08/31/2018   02:56:47   (  69.45, 133.10) 08/31/2018   02:57:53  (  69.37, 135.56)   96.68                66
 08/31/2018   03:47:10   ( -68.34, -58.07) 08/31/2018   03:47:39  ( -68.37, -58.08)    3.18                29
 08/31/2018   04:37:54   (  68.22, 109.39) 08/31/2018   04:37:07  (  68.21, 109.37)    1.74                47
 09/02/2018   19:13:26   (  68.50,-109.84) 09/02/2018   19:14:37  (  68.47,-109.70)    6.36                71
 09/02/2018   20:04:06   ( -68.30,  57.75) 09/02/2018   20:04:08  ( -68.30,  57.73)    1.17                 2
 09/02/2018   20:54:49   (  68.13,-134.73) 09/02/2018   20:53:36  (  68.14,-134.82)    4.11                73
 09/05/2018   11:30:21   (  68.41,   6.05) 09/05/2018   11:31:06  (  68.39,   6.08)    2.74                45
 09/05/2018   12:21:02   ( -68.26, 173.57) 09/05/2018   12:20:36  ( -68.28, 173.58)    2.31                26
 09/08/2018   02:56:46   ( -69.23, -46.60) 09/08/2018   02:57:54  ( -69.13, -44.76)   73.74                68
 09/08/2018   03:47:15   (  68.33, 121.93) 09/08/2018   03:47:33  (  68.35, 121.92)    2.87                18
 09/08/2018   04:37:57   ( -68.22, -70.62) 09/08/2018   04:37:03  ( -68.24, -70.58)    2.45                54
 09/10/2018   19:13:28   ( -68.45,  70.23) 09/10/2018   19:14:33  ( -68.46,  70.29)    2.94                65
 09/10/2018   20:04:11   (  68.29,-122.26) 09/10/2018   20:04:01  (  68.29,-122.26)    0.19                10
 09/10/2018   20:54:47   ( -67.87,  45.60) 09/10/2018   20:53:35  ( -67.96,  44.98)   28.06                72