Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 5 11.  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)
 05/13/2017   10:39:10   ( -68.83,-161.79) 05/13/2017   10:40:21  ( -68.68,-160.91)   39.30                71
 05/13/2017   11:29:46   (  68.28,   6.25) 05/13/2017   11:29:53  (  68.30,   6.27)    2.97                 7
 05/13/2017   12:20:27   ( -68.14, 173.74) 05/13/2017   12:19:24  ( -68.13, 173.70)    2.36                63
 05/16/2017   02:55:57   ( -68.38, -45.42) 05/16/2017   02:56:55  ( -68.39, -45.39)    1.31                58
 05/16/2017   03:46:41   (  68.25, 122.05) 05/16/2017   03:46:23  (  68.23, 122.06)    3.29                18
 05/16/2017   04:37:12   ( -67.58, -69.79) 05/16/2017   04:36:02  ( -67.61, -71.02)   52.13                70
 05/18/2017   19:12:51   ( -68.31,  70.45) 05/18/2017   19:13:25  ( -68.30,  70.39)    2.83                34
 05/18/2017   20:03:35   (  68.18,-122.08) 05/18/2017   20:02:52  (  68.19,-122.10)    1.03                43
 05/21/2017   10:39:09   (  68.64,  18.46) 05/21/2017   10:40:20  (  68.58,  18.98)   22.01                71
 05/21/2017   11:29:46   ( -68.29,-173.76) 05/21/2017   11:29:53  ( -68.30,-173.72)    1.98                 7
 05/21/2017   12:20:30   (  68.16,  -6.29) 05/21/2017   12:19:21  (  68.13,  -6.28)    3.44                69
 05/24/2017   02:55:58   (  68.36, 134.61) 05/24/2017   02:56:51  (  68.34, 134.57)    2.64                53
 05/24/2017   03:46:39   ( -68.22, -57.89) 05/24/2017   03:46:21  ( -68.24, -57.92)    2.04                18
 05/24/2017   04:37:09   (  67.34, 110.50) 05/24/2017   04:36:01  (  67.39, 108.75)   74.90                68