Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 1 30.  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)
 02/01/2018   10:39:14   (  68.60,  18.49) 02/01/2018   10:40:25  (  68.53,  18.93)   19.43                71
 02/01/2018   11:29:51   ( -68.26,-173.75) 02/01/2018   11:29:58  ( -68.27,-173.76)    1.00                 7
 02/01/2018   12:20:35   (  68.12,  -6.27) 02/01/2018   12:19:25  (  68.15,  -6.25)    2.82                70
 02/04/2018   02:56:03   (  68.37, 134.57) 02/04/2018   02:56:59  (  68.35, 134.58)    2.16                56
 02/04/2018   03:46:44   ( -68.24, -57.95) 02/04/2018   03:46:29  ( -68.25, -57.90)    2.38                15
 02/04/2018   04:37:16   (  67.46, 110.33) 02/04/2018   04:36:07  (  67.52, 108.89)   61.36                69
 02/06/2018   19:12:54   (  68.30,-109.57) 02/06/2018   19:13:30  (  68.32,-109.59)    1.78                36
 02/06/2018   20:03:35   ( -68.17,  57.92) 02/06/2018   20:03:01  ( -68.17,  57.86)    2.44                34
 02/09/2018   10:39:16   ( -69.11,-162.17) 02/09/2018   10:40:25  ( -68.99,-160.53)   66.69                69
 02/09/2018   11:29:47   (  68.29,   6.23) 02/09/2018   11:30:02  (  68.31,   6.28)    3.30                15
 02/09/2018   12:20:28   ( -68.16, 173.72) 02/09/2018   12:19:33  ( -68.17, 173.73)    1.30                55
 02/12/2018   02:55:57   ( -68.46, -45.52) 02/12/2018   02:57:08  ( -68.42, -45.38)    7.13                71
 02/12/2018   03:46:39   (  68.22, 122.09) 02/12/2018   03:46:36  (  68.24, 122.05)    2.20                 3
 02/12/2018   04:37:20   ( -68.09, -70.42) 02/12/2018   04:36:07  ( -68.09, -70.49)    3.06                73