Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 7 1.  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)
 07/03/2018   11:30:01   (  68.92,   5.43) 07/03/2018   11:31:11  (  68.78,   6.55)   47.49                70
 07/03/2018   12:20:33   ( -68.31, 173.55) 07/03/2018   12:20:48  ( -68.29, 173.58)    2.65                15
 07/03/2018   13:11:17   (  68.17, -18.96) 07/03/2018   13:10:15  (  68.17, -18.91)    2.05                62
 07/06/2018   03:46:45   (  68.40, 121.89) 07/06/2018   03:47:46  (  68.40, 121.96)    2.74                61
 07/06/2018   04:37:25   ( -68.22, -70.56) 07/06/2018   04:37:17  ( -68.25, -70.59)    3.11                 8
 07/06/2018   05:28:02   (  67.71,  97.39) 07/06/2018   05:26:51  (  67.73,  96.45)   39.75                71
 07/08/2018   20:03:38   (  68.32,-122.22) 07/08/2018   20:04:16  (  68.35,-122.23)    3.11                38
 07/08/2018   20:54:19   ( -68.19,  45.26) 07/08/2018   20:53:47  ( -68.19,  45.22)    1.83                32
 07/11/2018   11:30:00   ( -69.06,-174.74) 07/11/2018   11:31:09  ( -68.96,-173.23)   61.09                69
 07/11/2018   12:20:32   (  68.29,  -6.41) 07/11/2018   12:20:46  (  68.28,  -6.42)    0.78                14
 07/11/2018   13:11:13   ( -68.15, 161.08) 07/11/2018   13:10:17  ( -68.14, 161.03)    2.95                56
 07/14/2018   03:46:42   ( -68.39, -58.07) 07/14/2018   03:47:48  ( -68.40, -58.05)    1.61                66
 07/14/2018   04:37:26   (  68.26, 109.40) 07/14/2018   04:37:15  (  68.27, 109.44)    1.97                11
 07/14/2018   05:28:02   ( -67.85, -82.77) 07/14/2018   05:26:50  ( -67.90, -83.36)   25.51                72