Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 6 6.  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)
 06/06/2018   20:03:43   (  68.31,-122.26) 06/06/2018   20:04:11  (  68.30,-122.25)    1.41                28
 06/06/2018   20:54:24   ( -68.18,  45.22) 06/06/2018   20:53:41  ( -68.19,  45.25)    1.80                43
 06/09/2018   11:29:59   ( -68.71,-174.33) 06/09/2018   11:31:11  ( -68.58,-173.68)   29.92                72
 06/09/2018   12:20:37   (  68.25,  -6.42) 06/09/2018   12:20:42  (  68.24,  -6.44)    1.67                 5
 06/09/2018   13:11:18   ( -68.13, 161.06) 06/09/2018   13:10:12  ( -68.14, 161.07)    1.57                66
 06/12/2018   03:46:47   ( -68.34, -58.06) 06/12/2018   03:47:45  ( -68.36, -58.07)    2.71                58
 06/12/2018   04:37:31   (  68.20, 109.42) 06/12/2018   04:37:13  (  68.19, 109.36)    3.01                18
 06/12/2018   05:28:02   ( -67.54, -82.44) 06/12/2018   05:26:52  ( -67.59, -83.70)   53.88                70
 06/14/2018   20:03:40   ( -68.29,  57.78) 06/14/2018   20:04:15  ( -68.31,  57.73)    2.81                35
 06/14/2018   20:54:24   (  68.15,-134.74) 06/14/2018   20:53:42  (  68.18,-134.77)    3.24                42
 06/17/2018   11:30:00   (  68.75,   5.63) 06/17/2018   11:31:11  (  68.62,   6.36)   32.68                71
 06/17/2018   12:20:35   ( -68.29, 173.55) 06/17/2018   12:20:45  ( -68.30, 173.60)    2.55                10
 06/17/2018   13:11:18   (  68.11, -18.91) 06/17/2018   13:10:13  (  68.12, -18.97)    2.67                65
 06/20/2018   03:46:48   (  68.38, 121.89) 06/20/2018   03:47:45  (  68.38, 121.95)    2.40                57
 06/20/2018   04:37:29   ( -68.24, -70.62) 06/20/2018   04:37:16  ( -68.24, -70.60)    1.06                13
 06/20/2018   05:28:02   (  67.52,  97.59) 06/20/2018   05:26:52  (  67.61,  96.32)   54.71                70