Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 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)
 10/25/2017   18:22:58   (  68.48, -97.15) 10/25/2017   18:24:02  (  68.48, -97.12)    1.32                64
 10/25/2017   19:13:39   ( -68.35,  70.33) 10/25/2017   19:13:33  ( -68.33,  70.33)    2.93                 6
 10/25/2017   20:04:17   (  67.89,-121.78) 10/25/2017   20:03:05  (  67.93,-122.50)   30.53                72
 10/28/2017   10:39:52   (  68.42,  18.69) 10/28/2017   10:40:31  (  68.45,  18.73)    3.38                39
 10/28/2017   11:30:33   ( -68.30,-173.83) 10/28/2017   11:30:02  ( -68.30,-173.82)    0.28                31
 10/31/2017   02:06:14   ( -69.20, -33.89) 10/31/2017   02:07:22  ( -69.10, -32.23)   66.91                68
 10/31/2017   02:56:45   (  68.37, 134.52) 10/31/2017   02:57:00  (  68.36, 134.50)    1.49                15
 10/31/2017   03:47:26   ( -68.24, -57.99) 10/31/2017   03:46:30  ( -68.27, -57.98)    2.87                56
 11/02/2017   18:22:55   ( -68.45,  82.88) 11/02/2017   18:24:02  ( -68.45,  82.85)    1.18                67
 11/02/2017   19:13:39   (  68.33,-109.65) 11/02/2017   19:13:29  (  68.33,-109.66)    0.22                10
 11/02/2017   20:04:15   ( -67.92,  58.18) 11/02/2017   20:03:03  ( -68.01,  57.60)   26.05                72
 11/05/2017   10:39:49   ( -68.40,-161.29) 11/05/2017   10:40:31  ( -68.42,-161.31)    1.54                42
 11/05/2017   11:30:33   (  68.28,   6.17) 11/05/2017   11:29:58  (  68.29,   6.18)    0.97                35