Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 9 4.  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)
 09/05/2018   11:30:20   (  68.40,   6.06) 09/05/2018   11:31:06  (  68.41,   6.09)    1.18                46
 09/05/2018   12:21:01   ( -68.26, 173.57) 09/05/2018   12:20:37  ( -68.24, 173.52)    2.84                24
 09/05/2018   13:11:27   (  67.16, -17.79) 09/05/2018   13:10:20  (  67.23, -19.98)   95.07                67
 09/08/2018   02:56:47   ( -69.28, -46.67) 09/08/2018   02:57:55  ( -69.20, -44.69)   78.73                68
 09/08/2018   03:47:16   (  68.37, 121.88) 09/08/2018   03:47:35  (  68.37, 121.92)    1.73                19
 09/08/2018   04:37:57   ( -68.22, -70.61) 09/08/2018   04:37:06  ( -68.20, -70.65)    2.42                51
 09/10/2018   19:13:28   ( -68.45,  70.23) 09/10/2018   19:14:37  ( -68.44,  70.24)    1.12                69
 09/10/2018   20:04:12   (  68.34,-122.31) 09/10/2018   20:04:04  (  68.33,-122.25)    2.79                 8
 09/10/2018   20:54:50   ( -68.02,  45.40) 09/10/2018   20:53:37  ( -68.05,  45.06)   14.77                73
 09/13/2018   11:30:24   ( -68.42,-173.96) 09/13/2018   11:31:06  ( -68.40,-173.93)    1.97                42
 09/13/2018   12:21:07   (  68.25,  -6.44) 09/13/2018   12:20:34  (  68.23,  -6.49)    3.08                33
 09/16/2018   02:56:47   (  69.02, 133.68) 09/16/2018   02:57:56  (  68.91, 134.95)   52.38                69
 09/16/2018   03:47:19   ( -68.39, -58.15) 09/16/2018   03:47:34  ( -68.37, -58.09)    3.19                15
 09/16/2018   04:38:02   (  68.22, 109.37) 09/16/2018   04:37:01  (  68.25, 109.41)    3.43                61