Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 1 2.  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)
 01/02/2017   18:22:50   ( -68.40,  82.90) 01/02/2017   18:23:58  ( -68.42,  82.85)    2.52                68
 01/02/2017   19:13:34   (  68.28,-109.64) 01/02/2017   19:13:26  (  68.26,-109.70)    3.36                 8
 01/02/2017   20:04:11   ( -67.93,  58.13) 01/02/2017   20:02:59  ( -67.97,  57.60)   22.62                72
 01/05/2017   10:39:44   ( -68.39,-161.31) 01/05/2017   10:40:26  ( -68.41,-161.28)    2.66                42
 01/05/2017   11:30:27   (  68.27,   6.15) 01/05/2017   11:29:53  (  68.25,   6.17)    2.19                34
 01/08/2017   02:06:06   (  69.06, 146.25) 01/08/2017   02:07:15  (  68.95, 147.65)   56.85                69
 01/08/2017   02:56:36   ( -68.33, -45.46) 01/08/2017   02:56:54  ( -68.34, -45.48)    1.46                18
 01/08/2017   03:47:20   (  68.20, 122.00) 01/08/2017   03:46:21  (  68.23, 122.04)    3.13                59
 01/10/2017   18:22:48   (  68.41, -97.11) 01/10/2017   18:23:52  (  68.42, -97.13)    1.90                64
 01/10/2017   19:13:30   ( -68.32,  70.32) 01/10/2017   19:13:22  ( -68.31,  70.37)    2.33                 8
 01/10/2017   20:04:07   (  67.82,-121.74) 01/10/2017   20:02:55  (  67.87,-122.51)   32.48                72
 01/13/2017   10:39:42   (  68.40,  18.67) 01/13/2017   10:40:20  (  68.39,  18.71)    2.87                38
 01/13/2017   11:30:23   ( -68.26,-173.83) 01/13/2017   11:29:50  ( -68.28,-173.79)    2.33                33
 01/16/2017   02:06:02   ( -69.06, -33.74) 01/16/2017   02:07:12  ( -68.95, -32.35)   56.91                70
 01/16/2017   02:56:35   (  68.35, 134.51) 01/16/2017   02:56:48  (  68.34, 134.54)    2.04                13