Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 8 9.  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)
 08/09/2018   19:13:24   ( -69.27,  69.16) 08/09/2018   19:14:32  ( -69.15,  71.14)   79.12                68
 08/09/2018   20:03:53   (  68.34,-122.28) 08/09/2018   20:04:12  (  68.33,-122.25)    2.54                19
 08/09/2018   20:54:34   ( -68.20,  45.22) 08/09/2018   20:53:42  ( -68.21,  45.25)    2.05                52
 08/12/2018   11:30:05   ( -68.41,-173.91) 08/12/2018   11:31:14  ( -68.40,-173.92)    1.30                69
 08/12/2018   12:20:49   (  68.29,  -6.45) 08/12/2018   12:20:41  (  68.29,  -6.41)    1.41                 8
 08/12/2018   13:11:27   ( -67.98, 161.26) 08/12/2018   13:10:14  ( -68.01, 160.90)   15.66                73
 08/15/2018   03:47:01   ( -68.35, -58.07) 08/15/2018   03:47:43  ( -68.36, -58.09)    1.36                42
 08/15/2018   04:37:45   (  68.24, 109.39) 08/15/2018   04:37:10  (  68.25, 109.42)    1.73                35
 08/17/2018   19:13:24   (  68.93,-110.39) 08/17/2018   19:14:34  (  68.81,-109.28)   46.48                70
 08/17/2018   20:03:56   ( -68.30,  57.77) 08/17/2018   20:04:11  ( -68.32,  57.74)    2.97                15
 08/17/2018   20:54:40   (  68.18,-134.78) 08/17/2018   20:53:38  (  68.20,-134.75)    2.50                62
 08/20/2018   11:30:11   (  68.40,   6.09) 08/20/2018   11:31:10  (  68.38,   6.07)    2.39                59
 08/20/2018   12:20:53   ( -68.29, 173.54) 08/20/2018   12:20:40  ( -68.28, 173.57)    2.42                13
 08/20/2018   13:11:26   (  67.59, -18.28) 08/20/2018   13:10:16  (  67.66, -19.50)   52.35                70