Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 1.  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)
 08/04/2017   02:56:05   ( -68.46, -45.48) 08/04/2017   02:57:13  ( -68.44, -45.43)    3.18                68
 08/04/2017   03:46:48   (  68.29, 122.05) 08/04/2017   03:46:41  (  68.27, 122.01)    2.73                 7
 08/04/2017   04:37:26   ( -67.98, -70.24) 08/04/2017   04:36:13  ( -68.05, -70.61)   17.47                73
 08/06/2017   19:13:01   ( -68.37,  70.39) 08/06/2017   19:13:44  ( -68.40,  70.40)    3.31                43
 08/06/2017   20:03:45   (  68.26,-122.15) 08/06/2017   20:03:12  (  68.23,-122.17)    3.17                33
 08/09/2017   10:39:26   (  69.03,  17.96) 08/09/2017   10:40:35  (  68.96,  19.33)   55.31                69
 08/09/2017   11:29:57   ( -68.34,-173.80) 08/09/2017   11:30:14  ( -68.36,-173.78)    2.89                17
 08/09/2017   12:20:40   (  68.17,  -6.28) 08/09/2017   12:19:42  (  68.19,  -6.34)    3.05                58
 08/12/2017   02:56:12   (  68.41, 134.55) 08/12/2017   02:57:15  (  68.42, 134.53)    1.42                63
 08/12/2017   03:46:54   ( -68.30, -58.00) 08/12/2017   03:46:45  ( -68.32, -57.95)    2.60                 9
 08/12/2017   04:37:30   (  67.77, 109.99) 08/12/2017   04:36:19  (  67.81, 109.09)   38.08                71
 08/14/2017   19:13:09   (  68.38,-109.65) 08/14/2017   19:13:46  (  68.38,-109.64)    0.39                37
 08/14/2017   20:03:51   ( -68.27,  57.81) 08/14/2017   20:03:16  ( -68.28,  57.87)    2.77                35