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,-122.27) 06/06/2018   20:04:11  (  68.29,-122.27)    2.96                28
 06/06/2018   20:54:24   ( -68.19,  45.21) 06/06/2018   20:53:41  ( -68.18,  45.24)    1.37                43
 06/09/2018   11:29:59   ( -68.71,-174.33) 06/09/2018   11:31:10  ( -68.61,-173.64)   30.13                71
 06/09/2018   12:20:37   (  68.26,  -6.43) 06/09/2018   12:20:41  (  68.27,  -6.41)    1.83                 4
 06/09/2018   13:11:18   ( -68.13, 161.06) 06/09/2018   13:10:12  ( -68.12, 161.04)    1.77                66
 06/12/2018   03:46:47   ( -68.34, -58.06) 06/12/2018   03:47:44  ( -68.37, -58.06)    3.12                57
 06/12/2018   04:37:31   (  68.21, 109.41) 06/12/2018   04:37:12  (  68.19, 109.37)    2.31                19
 06/12/2018   05:28:02   ( -67.54, -82.44) 06/12/2018   05:26:51  ( -67.59, -83.69)   53.37                71
 06/14/2018   20:03:41   ( -68.34,  57.71) 06/14/2018   20:04:13  ( -68.33,  57.77)    2.85                32
 06/14/2018   20:54:24   (  68.16,-134.75) 06/14/2018   20:53:41  (  68.16,-134.79)    1.87                43
 06/17/2018   11:29:58   (  68.64,   5.77) 06/17/2018   11:31:10  (  68.55,   6.28)   23.13                72
 06/17/2018   12:20:35   ( -68.29, 173.55) 06/17/2018   12:20:43  ( -68.29, 173.60)    2.12                 8
 06/17/2018   13:11:18   (  68.11, -18.91) 06/17/2018   13:10:11  (  68.11, -18.97)    2.54                67