Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 7 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)
 07/08/2018   20:03:38   (  68.34,-122.25) 07/08/2018   20:04:16  (  68.34,-122.24)    0.91                38
 07/08/2018   20:54:19   ( -68.21,  45.23) 07/08/2018   20:53:47  ( -68.19,  45.21)    2.74                32
 07/11/2018   11:30:00   ( -69.08,-174.77) 07/11/2018   11:31:09  ( -68.97,-173.23)   62.70                69
 07/11/2018   12:20:32   (  68.31,  -6.43) 07/11/2018   12:20:46  (  68.29,  -6.42)    1.76                14
 07/11/2018   13:11:13   ( -68.18, 161.05) 07/11/2018   13:10:16  ( -68.20, 161.10)    2.59                57
 07/14/2018   03:46:42   ( -68.41, -58.10) 07/14/2018   03:47:48  ( -68.41, -58.04)    2.29                66
 07/14/2018   04:37:25   (  68.23, 109.45) 07/14/2018   04:37:16  (  68.24, 109.39)    2.58                 9
 07/14/2018   05:28:02   ( -67.88, -82.80) 07/14/2018   05:26:50  ( -67.92, -83.35)   23.65                72
 07/16/2018   20:03:36   ( -68.38,  57.72) 07/16/2018   20:04:18  ( -68.36,  57.76)    3.31                42
 07/16/2018   20:54:19   (  68.20,-134.74) 07/16/2018   20:53:45  (  68.23,-134.74)    3.36                34
 07/19/2018   11:29:58   (  69.03,   5.31) 07/19/2018   11:31:07  (  68.94,   6.74)   57.90                69
 07/19/2018   12:20:28   ( -68.30, 173.60) 07/19/2018   12:20:47  ( -68.29, 173.57)    1.66                19
 07/19/2018   13:11:12   (  68.18, -18.94) 07/19/2018   13:10:14  (  68.17, -18.94)    1.31                58