Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 3 28.  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)
 03/29/2018   11:29:44   (  68.31,   6.20) 03/29/2018   11:30:17  (  68.30,   6.24)    1.97                33
 03/29/2018   12:20:25   ( -68.18, 173.69) 03/29/2018   12:19:48  ( -68.15, 173.68)    3.36                37
 04/01/2018   02:56:05   ( -68.91, -46.13) 04/01/2018   02:57:15  ( -68.83, -44.90)   50.28                70
 04/01/2018   03:46:39   (  68.25, 122.04) 04/01/2018   03:46:50  (  68.27, 122.06)    2.16                11
 04/01/2018   04:37:20   ( -68.11, -70.46) 04/01/2018   04:36:21  ( -68.11, -70.49)    1.39                59
 04/03/2018   19:12:51   ( -68.37,  70.36) 04/03/2018   19:13:56  ( -68.35,  70.38)    1.98                65
 04/03/2018   20:03:34   (  68.20,-122.12) 04/03/2018   20:03:24  (  68.18,-122.18)    3.27                10
 04/03/2018   20:54:10   ( -67.78,  45.72) 04/03/2018   20:52:58  ( -67.86,  45.07)   28.57                72
 04/06/2018   11:29:45   ( -68.30,-173.80) 04/06/2018   11:30:28  ( -68.31,-173.80)    0.72                43
 04/06/2018   12:20:29   (  68.19,  -6.34) 04/06/2018   12:19:55  (  68.19,  -6.30)    1.96                34
 04/09/2018   02:56:12   (  69.10, 133.59) 04/09/2018   02:57:20  (  68.98, 135.26)   67.56                68
 04/09/2018   03:46:40   ( -68.24, -57.95) 04/09/2018   03:47:01  ( -68.27, -57.99)    2.86                21
 04/09/2018   04:37:24   (  68.14, 109.49) 04/09/2018   04:36:28  (  68.15, 109.52)    1.64                56