Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 10 25.  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)
 10/26/2018   02:56:36   ( -68.46, -45.52) 10/26/2018   02:57:37  ( -68.45, -45.54)    1.43                61
 10/26/2018   03:47:20   (  68.32, 121.97) 10/26/2018   03:47:04  (  68.34, 121.97)    1.68                16
 10/26/2018   04:37:53   ( -67.77, -70.02) 10/26/2018   04:36:42  ( -67.78, -71.05)   43.49                71
 10/28/2018   19:13:30   ( -68.43,  70.29) 10/28/2018   19:14:04  ( -68.43,  70.32)    1.01                34
 10/28/2018   20:04:14   (  68.29,-122.22) 10/28/2018   20:03:31  (  68.31,-122.18)    2.71                43
 10/31/2018   10:39:47   (  68.74,  18.33) 10/31/2018   10:40:58  (  68.66,  18.86)   23.22                71
 10/31/2018   11:30:24   ( -68.40,-173.90) 10/31/2018   11:30:31  ( -68.39,-173.84)    2.71                 7
 10/31/2018   12:21:07   (  68.21,  -6.35) 10/31/2018   12:19:59  (  68.22,  -6.40)    2.14                68
 11/03/2018   02:56:36   (  68.45, 134.48) 11/03/2018   02:57:28  (  68.45, 134.49)    0.17                52
 11/03/2018   03:47:17   ( -68.32, -58.03) 11/03/2018   03:46:59  ( -68.29, -58.07)    2.93                18
 11/03/2018   04:37:47   (  67.43, 110.38) 11/03/2018   04:36:39  (  67.44, 108.59)   76.08                68
 11/05/2018   19:13:28   (  68.37,-109.65) 11/05/2018   19:13:54  (  68.39,-109.69)    2.74                26
 11/05/2018   20:04:10   ( -68.29,  57.77) 11/05/2018   20:03:24  ( -68.30,  57.82)    2.24                46
 11/08/2018   10:39:41   ( -68.64,-161.54) 11/08/2018   10:40:52  ( -68.57,-161.24)   14.57                71
 11/08/2018   11:30:22   (  68.35,   6.14) 11/08/2018   11:30:21  (  68.33,   6.12)    3.22                 1
 11/08/2018   12:21:03   ( -68.22, 173.64) 11/08/2018   12:19:51  ( -68.23, 173.64)    1.76                72