Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 6 13.  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)
 06/15/2019   02:56:18   (  68.34, 134.54) 06/15/2019   02:56:58  (  68.36, 134.54)    2.38                40
 06/15/2019   03:46:59   ( -68.20, -57.97) 06/15/2019   03:46:29  ( -68.20, -58.02)    2.03                30
 06/17/2019   18:22:41   ( -69.04,  82.06) 06/17/2019   18:23:50  ( -68.97,  83.54)   59.35                69
 06/17/2019   19:13:13   (  68.27,-109.61) 06/17/2019   19:13:27  (  68.29,-109.65)    3.12                14
 06/17/2019   20:03:55   ( -68.19,  57.82) 06/17/2019   20:02:57  ( -68.19,  57.86)    2.05                58
 06/20/2019   10:39:24   ( -68.39,-161.30) 06/20/2019   10:40:27  ( -68.41,-161.28)    2.31                63
 06/20/2019   11:30:08   (  68.26,   6.17) 06/20/2019   11:29:54  (  68.28,   6.22)    3.05                14
 06/20/2019   12:20:42   ( -67.75, 174.14) 06/20/2019   12:19:31  ( -67.80, 173.28)   36.40                71
 06/23/2019   02:56:19   ( -68.32, -45.45) 06/23/2019   02:56:56  ( -68.34, -45.48)    2.08                37
 06/23/2019   03:47:03   (  68.20, 122.02) 06/23/2019   03:46:23  (  68.21, 122.02)    1.22                40
 06/25/2019   18:22:39   (  68.73, -97.53) 06/25/2019   18:23:50  (  68.64, -96.86)   28.73                71
 06/25/2019   19:13:15   ( -68.32,  70.33) 06/25/2019   19:13:24  ( -68.32,  70.39)    2.37                 9
 06/25/2019   20:03:58   (  68.14,-122.13) 06/25/2019   20:02:52  (  68.14,-122.19)    2.29                66