Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 11 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)
 11/10/2017   18:22:55   (  68.43, -97.11) 11/10/2017   18:24:04  (  68.42, -97.14)    1.50                69
 11/10/2017   19:13:36   ( -68.30,  70.38) 11/10/2017   19:13:34  ( -68.32,  70.37)    2.51                 2
 11/10/2017   20:04:16   (  67.95,-121.87) 11/10/2017   20:03:04  (  68.03,-122.33)   21.03                72
 11/13/2017   10:39:49   (  68.39,  18.70) 11/13/2017   10:40:33  (  68.40,  18.72)    1.19                44
 11/13/2017   11:30:30   ( -68.26,-173.80) 11/13/2017   11:30:04  ( -68.25,-173.84)    1.93                26
 11/16/2017   02:06:14   ( -69.34, -34.11) 11/16/2017   02:07:21  ( -69.21, -32.03)   83.32                67
 11/16/2017   02:56:42   (  68.36, 134.51) 11/16/2017   02:57:01  (  68.37, 134.56)    2.16                19
 11/16/2017   03:47:23   ( -68.22, -57.99) 11/16/2017   03:46:32  ( -68.21, -57.99)    1.01                51
 11/18/2017   18:22:52   ( -68.45,  82.86) 11/18/2017   18:24:03  ( -68.44,  82.89)    1.95                71
 11/18/2017   19:13:35   (  68.28,-109.62) 11/18/2017   19:13:31  (  68.26,-109.68)    3.48                 4
 11/18/2017   20:04:15   ( -68.08,  57.96) 11/18/2017   20:03:02  ( -68.11,  57.77)    8.12                73
 11/21/2017   10:39:45   ( -68.37,-161.27) 11/21/2017   10:40:32  ( -68.38,-161.30)    1.38                47
 11/21/2017   11:30:29   (  68.26,   6.18) 11/21/2017   11:29:59  (  68.25,   6.20)    1.04                30
 11/21/2017   12:20:53   ( -67.19, 174.80) 11/21/2017   12:19:46  ( -67.21, 172.63)   93.54                67