Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 11 6.  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)
 11/08/2017   02:06:14   (  69.17, 146.12) 11/08/2017   02:07:23  (  69.06, 147.78)   66.92                69
 11/08/2017   02:56:42   ( -68.34, -45.45) 11/08/2017   02:57:04  ( -68.33, -45.49)    1.89                22
 11/08/2017   03:47:26   (  68.21, 122.03) 11/08/2017   03:46:31  (  68.23, 122.03)    1.51                55
 11/10/2017   18:22:55   (  68.44, -97.12) 11/10/2017   18:24:02  (  68.46, -97.08)    3.30                67
 11/10/2017   19:13:36   ( -68.30,  70.38) 11/10/2017   19:13:33  ( -68.30,  70.36)    0.85                 3
 11/10/2017   20:04:16   (  67.96,-121.88) 11/10/2017   20:03:03  (  68.02,-122.33)   19.88                73
 11/13/2017   10:39:49   (  68.40,  18.70) 11/13/2017   10:40:31  (  68.40,  18.73)    1.41                42
 11/13/2017   11:30:30   ( -68.26,-173.80) 11/13/2017   11:30:02  ( -68.24,-173.83)    2.60                28
 11/16/2017   02:06:12   ( -69.23, -33.96) 11/16/2017   02:07:20  ( -69.09, -32.16)   73.08                68
 11/16/2017   02:56:41   (  68.31, 134.58) 11/16/2017   02:56:59  (  68.31, 134.51)    2.64                18
 11/16/2017   03:47:23   ( -68.22, -57.99) 11/16/2017   03:46:29  ( -68.21, -57.98)    1.59                54
 11/18/2017   18:22:52   ( -68.45,  82.86) 11/18/2017   18:23:59  ( -68.43,  82.90)    2.65                67
 11/18/2017   19:13:35   (  68.28,-109.61) 11/18/2017   19:13:26  (  68.31,-109.60)    3.08                 9
 11/18/2017   20:04:12   ( -67.92,  58.16) 11/18/2017   20:03:00  ( -67.99,  57.65)   22.57                72