Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 6 17.  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)
 06/17/2018   11:30:00   (  68.71,   5.67) 06/17/2018   11:31:11  (  68.64,   6.39)   30.07                71
 06/17/2018   12:20:35   ( -68.27, 173.58) 06/17/2018   12:20:46  ( -68.26, 173.56)    1.48                11
 06/17/2018   13:11:19   (  68.13, -18.94) 06/17/2018   13:10:13  (  68.14, -18.93)    1.40                66
 06/20/2018   03:46:47   (  68.35, 121.93) 06/20/2018   03:47:45  (  68.34, 121.90)    1.29                58
 06/20/2018   04:37:28   ( -68.22, -70.59) 06/20/2018   04:37:15  ( -68.25, -70.58)    2.55                13
 06/20/2018   05:28:02   (  67.54,  97.56) 06/20/2018   05:26:52  (  67.56,  96.28)   54.68                70
 06/22/2018   20:03:41   (  68.30,-122.24) 06/22/2018   20:04:15  (  68.32,-122.25)    1.95                34
 06/22/2018   20:54:22   ( -68.18,  45.25) 06/22/2018   20:53:46  ( -68.17,  45.21)    1.78                36
 06/25/2018   11:30:01   ( -68.93,-174.60) 06/25/2018   11:31:11  ( -68.81,-173.42)   49.17                70
 06/25/2018   12:20:35   (  68.26,  -6.41) 06/25/2018   12:20:45  (  68.29,  -6.40)    3.33                10
 06/25/2018   13:11:16   ( -68.13, 161.08) 06/25/2018   13:10:16  ( -68.15, 161.05)    1.66                60
 06/28/2018   03:46:46   ( -68.41, -58.13) 06/28/2018   03:47:48  ( -68.39, -58.06)    3.47                62
 06/28/2018   04:37:29   (  68.22, 109.42) 06/28/2018   04:37:16  (  68.20, 109.37)    3.17                13
 06/28/2018   05:28:03   ( -67.71, -82.63) 06/28/2018   05:26:52  ( -67.78, -83.50)   37.36                71
 06/30/2018   20:03:39   ( -68.37,  57.70) 06/30/2018   20:04:17  ( -68.35,  57.77)    3.46                38
 06/30/2018   20:54:22   (  68.19,-134.76) 06/30/2018   20:53:45  (  68.16,-134.80)    3.22                37